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Finding the Fourth Proportional to 15,272,647.20, 22,908,970.80 and 15,272,647.20

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Solution

The fourth proportional to 15,272,647.20, 22,908,970.80 and 15,272,647.20 is: 22,908,970.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,272,647.20 : 22,908,970.80 = 15,272,647.20 : x
  2. Step 2: Convert to fraction form
    15,272,647.20/22,908,970.80 = 15,272,647.20/x
  3. Step 3: Cross multiply
    15,272,647.20x = 22,908,970.80 × 15,272,647.20
  4. Step 4: Simplify right side
    15,272,647.20x = 349,880,628,743,501.75
  5. Step 5: Solve for x
    x = 349,880,628,743,501.75/15,272,647.20
  6. Step 6: Final answer
    x = 22,908,970.80

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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.