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Finding the Third Proportional to 31,959 and 48,881.25

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Solution

The third proportional to 31,959 and 48,881.25 is: 74,763.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,959 : 48,881.25 = 48,881.25 : x
  2. Step 2: Convert to fraction form
    31,959/48,881.25 = 48,881.25/x
  3. Step 3: Cross multiply
    31,959x = 48,881.25 × 48,881.25
  4. Step 4: Simplify right side
    31,959x = 2,389,376,601.56
  5. Step 5: Solve for x
    x = 2,389,376,601.56/31,959
  6. Step 6: Final answer
    x = 74,763.81

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.