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Finding the Third Proportional to 48,782 and 66,261

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Solution

The third proportional to 48,782 and 66,261 is: 90,002.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,782 : 66,261 = 66,261 : x
  2. Step 2: Convert to fraction form
    48,782/66,261 = 66,261/x
  3. Step 3: Cross multiply
    48,782x = 66,261 × 66,261
  4. Step 4: Simplify right side
    48,782x = 4,390,520,121
  5. Step 5: Solve for x
    x = 4,390,520,121/48,782
  6. Step 6: Final answer
    x = 90,002.87

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.