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Finding the Fourth Proportional to 60,424.38, 90,638.37 and 28,837.79

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Solution

The fourth proportional to 60,424.38, 90,638.37 and 28,837.79 is: 43,257.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,424.38 : 90,638.37 = 28,837.79 : x
  2. Step 2: Convert to fraction form
    60,424.38/90,638.37 = 28,837.79/x
  3. Step 3: Cross multiply
    60,424.38x = 90,638.37 × 28,837.79
  4. Step 4: Simplify right side
    60,424.38x = 2,613,810,166.70
  5. Step 5: Solve for x
    x = 2,613,810,166.70/60,424.38
  6. Step 6: Final answer
    x = 43,257.54

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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.