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Finding the Third Proportional to 31,292.50 and 48,424

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Solution

The third proportional to 31,292.50 and 48,424 is: 74,934.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,292.50 : 48,424 = 48,424 : x
  2. Step 2: Convert to fraction form
    31,292.50/48,424 = 48,424/x
  3. Step 3: Cross multiply
    31,292.50x = 48,424 × 48,424
  4. Step 4: Simplify right side
    31,292.50x = 2,344,883,776
  5. Step 5: Solve for x
    x = 2,344,883,776/31,292.50
  6. Step 6: Final answer
    x = 74,934.37

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.