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Finding the Fourth Proportional to 21,884.52, 32,837.49 and 13,562.31

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Solution

The fourth proportional to 21,884.52, 32,837.49 and 13,562.31 is: 20,350.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,884.52 : 32,837.49 = 13,562.31 : x
  2. Step 2: Convert to fraction form
    21,884.52/32,837.49 = 13,562.31/x
  3. Step 3: Cross multiply
    21,884.52x = 32,837.49 × 13,562.31
  4. Step 4: Simplify right side
    21,884.52x = 445,352,219.00
  5. Step 5: Solve for x
    x = 445,352,219.00/21,884.52
  6. Step 6: Final answer
    x = 20,350.10

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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.