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Finding the Fourth Proportional to 48,480.25, 66,903.56 and 31,713.25

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Solution

The fourth proportional to 48,480.25, 66,903.56 and 31,713.25 is: 43,764.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,480.25 : 66,903.56 = 31,713.25 : x
  2. Step 2: Convert to fraction form
    48,480.25/66,903.56 = 31,713.25/x
  3. Step 3: Cross multiply
    48,480.25x = 66,903.56 × 31,713.25
  4. Step 4: Simplify right side
    48,480.25x = 2,121,729,324.17
  5. Step 5: Solve for x
    x = 2,121,729,324.17/48,480.25
  6. Step 6: Final answer
    x = 43,764.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.