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Finding the Fourth Proportional to 13,562.52, 20,344.12 and 4,328.52

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Solution

The fourth proportional to 13,562.52, 20,344.12 and 4,328.52 is: 6,492.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,562.52 : 20,344.12 = 4,328.52 : x
  2. Step 2: Convert to fraction form
    13,562.52/20,344.12 = 4,328.52/x
  3. Step 3: Cross multiply
    13,562.52x = 20,344.12 × 4,328.52
  4. Step 4: Simplify right side
    13,562.52x = 88,059,930.30
  5. Step 5: Solve for x
    x = 88,059,930.30/13,562.52
  6. Step 6: Final answer
    x = 6,492.89

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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.