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Finding the Third Proportional to 57,216.38 and 86,437.13

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Solution

The third proportional to 57,216.38 and 86,437.13 is: 130,581.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,216.38 : 86,437.13 = 86,437.13 : x
  2. Step 2: Convert to fraction form
    57,216.38/86,437.13 = 86,437.13/x
  3. Step 3: Cross multiply
    57,216.38x = 86,437.13 × 86,437.13
  4. Step 4: Simplify right side
    57,216.38x = 7,471,376,578.27
  5. Step 5: Solve for x
    x = 7,471,376,578.27/57,216.38
  6. Step 6: Final answer
    x = 130,581.09

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.