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Finding the Third Proportional to 60,378 and 91,569

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Solution

The third proportional to 60,378 and 91,569 is: 138,873.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,378 : 91,569 = 91,569 : x
  2. Step 2: Convert to fraction form
    60,378/91,569 = 91,569/x
  3. Step 3: Cross multiply
    60,378x = 91,569 × 91,569
  4. Step 4: Simplify right side
    60,378x = 8,384,881,761
  5. Step 5: Solve for x
    x = 8,384,881,761/60,378
  6. Step 6: Final answer
    x = 138,873.13

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.