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Finding the Third Proportional to 60,915.50 and 91,373

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Solution

The third proportional to 60,915.50 and 91,373 is: 137,059.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,915.50 : 91,373 = 91,373 : x
  2. Step 2: Convert to fraction form
    60,915.50/91,373 = 91,373/x
  3. Step 3: Cross multiply
    60,915.50x = 91,373 × 91,373
  4. Step 4: Simplify right side
    60,915.50x = 8,349,025,129
  5. Step 5: Solve for x
    x = 8,349,025,129/60,915.50
  6. Step 6: Final answer
    x = 137,059.13

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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.