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Finding the Third Proportional to 57,746 and 84,620

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Solution

The third proportional to 57,746 and 84,620 is: 124,000.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,746 : 84,620 = 84,620 : x
  2. Step 2: Convert to fraction form
    57,746/84,620 = 84,620/x
  3. Step 3: Cross multiply
    57,746x = 84,620 × 84,620
  4. Step 4: Simplify right side
    57,746x = 7,160,544,400
  5. Step 5: Solve for x
    x = 7,160,544,400/57,746
  6. Step 6: Final answer
    x = 124,000.70

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.