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Finding the Fourth Proportional to 57,482.25, 86,237.96 and 18,039.71

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Solution

The fourth proportional to 57,482.25, 86,237.96 and 18,039.71 is: 27,064.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,482.25 : 86,237.96 = 18,039.71 : x
  2. Step 2: Convert to fraction form
    57,482.25/86,237.96 = 18,039.71/x
  3. Step 3: Cross multiply
    57,482.25x = 86,237.96 × 18,039.71
  4. Step 4: Simplify right side
    57,482.25x = 1,555,707,789.39
  5. Step 5: Solve for x
    x = 1,555,707,789.39/57,482.25
  6. Step 6: Final answer
    x = 27,064.14

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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.