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Finding the Fourth Proportional to 29,291.52, 43,966.08 and 21,478.08

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Solution

The fourth proportional to 29,291.52, 43,966.08 and 21,478.08 is: 32,238.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,291.52 : 43,966.08 = 21,478.08 : x
  2. Step 2: Convert to fraction form
    29,291.52/43,966.08 = 21,478.08/x
  3. Step 3: Cross multiply
    29,291.52x = 43,966.08 × 21,478.08
  4. Step 4: Simplify right side
    29,291.52x = 944,306,983.53
  5. Step 5: Solve for x
    x = 944,306,983.53/29,291.52
  6. Step 6: Final answer
    x = 32,238.24

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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.