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Finding the Third Proportional to 52,518 and 80,724

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Solution

The third proportional to 52,518 and 80,724 is: 124,078.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,518 : 80,724 = 80,724 : x
  2. Step 2: Convert to fraction form
    52,518/80,724 = 80,724/x
  3. Step 3: Cross multiply
    52,518x = 80,724 × 80,724
  4. Step 4: Simplify right side
    52,518x = 6,516,364,176
  5. Step 5: Solve for x
    x = 6,516,364,176/52,518
  6. Step 6: Final answer
    x = 124,078.68

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.