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Finding the Third Proportional to 60,560 and 90,860

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Solution

The third proportional to 60,560 and 90,860 is: 136,320.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,560 : 90,860 = 90,860 : x
  2. Step 2: Convert to fraction form
    60,560/90,860 = 90,860/x
  3. Step 3: Cross multiply
    60,560x = 90,860 × 90,860
  4. Step 4: Simplify right side
    60,560x = 8,255,539,600
  5. Step 5: Solve for x
    x = 8,255,539,600/60,560
  6. Step 6: Final answer
    x = 136,320.01

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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.