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Finding the Fourth Proportional to 15,443.20, 23,116.20 and 11,069.20

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Solution

The fourth proportional to 15,443.20, 23,116.20 and 11,069.20 is: 16,568.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,443.20 : 23,116.20 = 11,069.20 : x
  2. Step 2: Convert to fraction form
    15,443.20/23,116.20 = 11,069.20/x
  3. Step 3: Cross multiply
    15,443.20x = 23,116.20 × 11,069.20
  4. Step 4: Simplify right side
    15,443.20x = 255,877,841.04
  5. Step 5: Solve for x
    x = 255,877,841.04/15,443.20
  6. Step 6: Final answer
    x = 16,568.97

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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.