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Finding the Fourth Proportional to 48,058.74, 71,987.58 and 38,647.80

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Solution

The fourth proportional to 48,058.74, 71,987.58 and 38,647.80 is: 57,890.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,058.74 : 71,987.58 = 38,647.80 : x
  2. Step 2: Convert to fraction form
    48,058.74/71,987.58 = 38,647.80/x
  3. Step 3: Cross multiply
    48,058.74x = 71,987.58 × 38,647.80
  4. Step 4: Simplify right side
    48,058.74x = 2,782,161,594.32
  5. Step 5: Solve for x
    x = 2,782,161,594.32/48,058.74
  6. Step 6: Final answer
    x = 57,890.86

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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.