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Finding the Third Proportional to 60,416 and 90,624

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Solution

The third proportional to 60,416 and 90,624 is: 135,936

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,416 : 90,624 = 90,624 : x
  2. Step 2: Convert to fraction form
    60,416/90,624 = 90,624/x
  3. Step 3: Cross multiply
    60,416x = 90,624 × 90,624
  4. Step 4: Simplify right side
    60,416x = 8,212,709,376
  5. Step 5: Solve for x
    x = 8,212,709,376/60,416
  6. Step 6: Final answer
    x = 135,936

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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.