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Finding the Fourth Proportional to 66,200.52, 91,358.46 and 35,987.88

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Solution

The fourth proportional to 66,200.52, 91,358.46 and 35,987.88 is: 49,664.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,200.52 : 91,358.46 = 35,987.88 : x
  2. Step 2: Convert to fraction form
    66,200.52/91,358.46 = 35,987.88/x
  3. Step 3: Cross multiply
    66,200.52x = 91,358.46 × 35,987.88
  4. Step 4: Simplify right side
    66,200.52x = 3,287,797,295.46
  5. Step 5: Solve for x
    x = 3,287,797,295.46/66,200.52
  6. Step 6: Final answer
    x = 49,664.22

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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.