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Finding the Third Proportional to 15,685 and 34,528

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Solution

The third proportional to 15,685 and 34,528 is: 76,007.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,685 : 34,528 = 34,528 : x
  2. Step 2: Convert to fraction form
    15,685/34,528 = 34,528/x
  3. Step 3: Cross multiply
    15,685x = 34,528 × 34,528
  4. Step 4: Simplify right side
    15,685x = 1,192,182,784
  5. Step 5: Solve for x
    x = 1,192,182,784/15,685
  6. Step 6: Final answer
    x = 76,007.83

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.