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Finding the Third Proportional to 31,237.88 and 67,465.13

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Solution

The third proportional to 31,237.88 and 67,465.13 is: 145,705.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,237.88 : 67,465.13 = 67,465.13 : x
  2. Step 2: Convert to fraction form
    31,237.88/67,465.13 = 67,465.13/x
  3. Step 3: Cross multiply
    31,237.88x = 67,465.13 × 67,465.13
  4. Step 4: Simplify right side
    31,237.88x = 4,551,543,091.27
  5. Step 5: Solve for x
    x = 4,551,543,091.27/31,237.88
  6. Step 6: Final answer
    x = 145,705.91

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.