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Finding the Fourth Proportional to 18,200.64, 27,304.80 and 5,721.93

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Solution

The fourth proportional to 18,200.64, 27,304.80 and 5,721.93 is: 8,584.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,200.64 : 27,304.80 = 5,721.93 : x
  2. Step 2: Convert to fraction form
    18,200.64/27,304.80 = 5,721.93/x
  3. Step 3: Cross multiply
    18,200.64x = 27,304.80 × 5,721.93
  4. Step 4: Simplify right side
    18,200.64x = 156,236,154.26
  5. Step 5: Solve for x
    x = 156,236,154.26/18,200.64
  6. Step 6: Final answer
    x = 8,584.10

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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.