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Finding the Fourth Proportional to 54,663, 81,993.06 and 15,218.52

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Solution

The fourth proportional to 54,663, 81,993.06 and 15,218.52 is: 22,827.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,663 : 81,993.06 = 15,218.52 : x
  2. Step 2: Convert to fraction form
    54,663/81,993.06 = 15,218.52/x
  3. Step 3: Cross multiply
    54,663x = 81,993.06 × 15,218.52
  4. Step 4: Simplify right side
    54,663x = 1,247,813,023.47
  5. Step 5: Solve for x
    x = 1,247,813,023.47/54,663
  6. Step 6: Final answer
    x = 22,827.38

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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.