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Finding the Fourth Proportional to 60,879.48, 84,067.20 and 38,257.80

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Solution

The fourth proportional to 60,879.48, 84,067.20 and 38,257.80 is: 52,829.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,879.48 : 84,067.20 = 38,257.80 : x
  2. Step 2: Convert to fraction form
    60,879.48/84,067.20 = 38,257.80/x
  3. Step 3: Cross multiply
    60,879.48x = 84,067.20 × 38,257.80
  4. Step 4: Simplify right side
    60,879.48x = 3,216,226,124.16
  5. Step 5: Solve for x
    x = 3,216,226,124.16/60,879.48
  6. Step 6: Final answer
    x = 52,829.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.