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Finding the Third Proportional to 60,689.25 and 91,206

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Solution

The third proportional to 60,689.25 and 91,206 is: 137,067.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,689.25 : 91,206 = 91,206 : x
  2. Step 2: Convert to fraction form
    60,689.25/91,206 = 91,206/x
  3. Step 3: Cross multiply
    60,689.25x = 91,206 × 91,206
  4. Step 4: Simplify right side
    60,689.25x = 8,318,534,436
  5. Step 5: Solve for x
    x = 8,318,534,436/60,689.25
  6. Step 6: Final answer
    x = 137,067.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.