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Finding the Fourth Proportional to 15,943,651.20, 23,915,476.80 and 14,431,996.80

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Solution

The fourth proportional to 15,943,651.20, 23,915,476.80 and 14,431,996.80 is: 21,647,995.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,943,651.20 : 23,915,476.80 = 14,431,996.80 : x
  2. Step 2: Convert to fraction form
    15,943,651.20/23,915,476.80 = 14,431,996.80/x
  3. Step 3: Cross multiply
    15,943,651.20x = 23,915,476.80 × 14,431,996.80
  4. Step 4: Simplify right side
    15,943,651.20x = 345,148,084,648,074.25
  5. Step 5: Solve for x
    x = 345,148,084,648,074.25/15,943,651.20
  6. Step 6: Final answer
    x = 21,647,995.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.