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Finding the Fourth Proportional to 18,159.68, 27,237.48 and 5,013.92

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Solution

The fourth proportional to 18,159.68, 27,237.48 and 5,013.92 is: 7,520.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,159.68 : 27,237.48 = 5,013.92 : x
  2. Step 2: Convert to fraction form
    18,159.68/27,237.48 = 5,013.92/x
  3. Step 3: Cross multiply
    18,159.68x = 27,237.48 × 5,013.92
  4. Step 4: Simplify right side
    18,159.68x = 136,566,545.72
  5. Step 5: Solve for x
    x = 136,566,545.72/18,159.68
  6. Step 6: Final answer
    x = 7,520.32

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1.5x scale

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.