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Finding the Fourth Proportional to 36,479.52, 54,719.52 and 31,534.56

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Solution

The fourth proportional to 36,479.52, 54,719.52 and 31,534.56 is: 47,302.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,479.52 : 54,719.52 = 31,534.56 : x
  2. Step 2: Convert to fraction form
    36,479.52/54,719.52 = 31,534.56/x
  3. Step 3: Cross multiply
    36,479.52x = 54,719.52 × 31,534.56
  4. Step 4: Simplify right side
    36,479.52x = 1,725,555,986.61
  5. Step 5: Solve for x
    x = 1,725,555,986.61/36,479.52
  6. Step 6: Final answer
    x = 47,302.05

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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.