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Finding the Fourth Proportional to 18,365.43, 27,545.98 and 5,039.77

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Solution

The fourth proportional to 18,365.43, 27,545.98 and 5,039.77 is: 7,559.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,365.43 : 27,545.98 = 5,039.77 : x
  2. Step 2: Convert to fraction form
    18,365.43/27,545.98 = 5,039.77/x
  3. Step 3: Cross multiply
    18,365.43x = 27,545.98 × 5,039.77
  4. Step 4: Simplify right side
    18,365.43x = 138,825,472.49
  5. Step 5: Solve for x
    x = 138,825,472.49/18,365.43
  6. Step 6: Final answer
    x = 7,559.06

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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.