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Finding the Fourth Proportional to 17,689.62, 24,411.36 and 9,731.79

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Solution

The fourth proportional to 17,689.62, 24,411.36 and 9,731.79 is: 13,429.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,689.62 : 24,411.36 = 9,731.79 : x
  2. Step 2: Convert to fraction form
    17,689.62/24,411.36 = 9,731.79/x
  3. Step 3: Cross multiply
    17,689.62x = 24,411.36 × 9,731.79
  4. Step 4: Simplify right side
    17,689.62x = 237,566,229.13
  5. Step 5: Solve for x
    x = 237,566,229.13/17,689.62
  6. Step 6: Final answer
    x = 13,429.70

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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.