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Finding the Fourth Proportional to 55,597.52, 76,733.52 and 31,725.20

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Solution

The fourth proportional to 55,597.52, 76,733.52 and 31,725.20 is: 43,785.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,597.52 : 76,733.52 = 31,725.20 : x
  2. Step 2: Convert to fraction form
    55,597.52/76,733.52 = 31,725.20/x
  3. Step 3: Cross multiply
    55,597.52x = 76,733.52 × 31,725.20
  4. Step 4: Simplify right side
    55,597.52x = 2,434,386,268.70
  5. Step 5: Solve for x
    x = 2,434,386,268.70/55,597.52
  6. Step 6: Final answer
    x = 43,785.88

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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.