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Finding the Fourth Proportional to 58,290.73, 87,414.22 and 18,837.25

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Solution

The fourth proportional to 58,290.73, 87,414.22 and 18,837.25 is: 28,248.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,290.73 : 87,414.22 = 18,837.25 : x
  2. Step 2: Convert to fraction form
    58,290.73/87,414.22 = 18,837.25/x
  3. Step 3: Cross multiply
    58,290.73x = 87,414.22 × 18,837.25
  4. Step 4: Simplify right side
    58,290.73x = 1,646,643,515.70
  5. Step 5: Solve for x
    x = 1,646,643,515.70/58,290.73
  6. Step 6: Final answer
    x = 28,248.81

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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.