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Finding the Fourth Proportional to 40,452.92, 60,713.40 and 20,750.48

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Solution

The fourth proportional to 40,452.92, 60,713.40 and 20,750.48 is: 31,143.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,452.92 : 60,713.40 = 20,750.48 : x
  2. Step 2: Convert to fraction form
    40,452.92/60,713.40 = 20,750.48/x
  3. Step 3: Cross multiply
    40,452.92x = 60,713.40 × 20,750.48
  4. Step 4: Simplify right side
    40,452.92x = 1,259,832,192.43
  5. Step 5: Solve for x
    x = 1,259,832,192.43/40,452.92
  6. Step 6: Final answer
    x = 31,143.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.