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Finding the Third Proportional to 56,770 and 72,394

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Solution

The third proportional to 56,770 and 72,394 is: 92,317.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,770 : 72,394 = 72,394 : x
  2. Step 2: Convert to fraction form
    56,770/72,394 = 72,394/x
  3. Step 3: Cross multiply
    56,770x = 72,394 × 72,394
  4. Step 4: Simplify right side
    56,770x = 5,240,891,236
  5. Step 5: Solve for x
    x = 5,240,891,236/56,770
  6. Step 6: Final answer
    x = 92,317.97

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.