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Finding the Third Proportional to 28,640.81 and 62,929.13

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Solution

The third proportional to 28,640.81 and 62,929.13 is: 138,266.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,640.81 : 62,929.13 = 62,929.13 : x
  2. Step 2: Convert to fraction form
    28,640.81/62,929.13 = 62,929.13/x
  3. Step 3: Cross multiply
    28,640.81x = 62,929.13 × 62,929.13
  4. Step 4: Simplify right side
    28,640.81x = 3,960,074,773.27
  5. Step 5: Solve for x
    x = 3,960,074,773.27/28,640.81
  6. Step 6: Final answer
    x = 138,266.84

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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.