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Finding the Third Proportional to 13,456.50 and 29,478

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Solution

The third proportional to 13,456.50 and 29,478 is: 64,574.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456.50 : 29,478 = 29,478 : x
  2. Step 2: Convert to fraction form
    13,456.50/29,478 = 29,478/x
  3. Step 3: Cross multiply
    13,456.50x = 29,478 × 29,478
  4. Step 4: Simplify right side
    13,456.50x = 868,952,484
  5. Step 5: Solve for x
    x = 868,952,484/13,456.50
  6. Step 6: Final answer
    x = 64,574.93

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.