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Finding the Third Proportional to 31,332 and 47,270

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Solution

The third proportional to 31,332 and 47,270 is: 71,315.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,332 : 47,270 = 47,270 : x
  2. Step 2: Convert to fraction form
    31,332/47,270 = 47,270/x
  3. Step 3: Cross multiply
    31,332x = 47,270 × 47,270
  4. Step 4: Simplify right side
    31,332x = 2,234,452,900
  5. Step 5: Solve for x
    x = 2,234,452,900/31,332
  6. Step 6: Final answer
    x = 71,315.36

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.