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Finding the Fourth Proportional to 18,321.52, 27,473.04 and 13,053.52

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Solution

The fourth proportional to 18,321.52, 27,473.04 and 13,053.52 is: 19,573.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,321.52 : 27,473.04 = 13,053.52 : x
  2. Step 2: Convert to fraction form
    18,321.52/27,473.04 = 13,053.52/x
  3. Step 3: Cross multiply
    18,321.52x = 27,473.04 × 13,053.52
  4. Step 4: Simplify right side
    18,321.52x = 358,619,877.10
  5. Step 5: Solve for x
    x = 358,619,877.10/18,321.52
  6. Step 6: Final answer
    x = 19,573.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.