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Finding the Fourth Proportional to 16,605.38, 22,915.53 and 9,891.29

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Solution

The fourth proportional to 16,605.38, 22,915.53 and 9,891.29 is: 13,650.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,605.38 : 22,915.53 = 9,891.29 : x
  2. Step 2: Convert to fraction form
    16,605.38/22,915.53 = 9,891.29/x
  3. Step 3: Cross multiply
    16,605.38x = 22,915.53 × 9,891.29
  4. Step 4: Simplify right side
    16,605.38x = 226,664,210.02
  5. Step 5: Solve for x
    x = 226,664,210.02/16,605.38
  6. Step 6: Final answer
    x = 13,650.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.