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Finding the Fourth Proportional to 27,419.52, 41,129.52 and 6,643.04

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Solution

The fourth proportional to 27,419.52, 41,129.52 and 6,643.04 is: 9,964.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,419.52 : 41,129.52 = 6,643.04 : x
  2. Step 2: Convert to fraction form
    27,419.52/41,129.52 = 6,643.04/x
  3. Step 3: Cross multiply
    27,419.52x = 41,129.52 × 6,643.04
  4. Step 4: Simplify right side
    27,419.52x = 273,225,046.54
  5. Step 5: Solve for x
    x = 273,225,046.54/27,419.52
  6. Step 6: Final answer
    x = 9,964.62

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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.