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Finding the Third Proportional to 60,924 and 90,880

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Solution

The third proportional to 60,924 and 90,880 is: 135,565.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,924 : 90,880 = 90,880 : x
  2. Step 2: Convert to fraction form
    60,924/90,880 = 90,880/x
  3. Step 3: Cross multiply
    60,924x = 90,880 × 90,880
  4. Step 4: Simplify right side
    60,924x = 8,259,174,400
  5. Step 5: Solve for x
    x = 8,259,174,400/60,924
  6. Step 6: Final answer
    x = 135,565.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.