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Finding the Fourth Proportional to 59,854.60, 89,879.10 and 40,220.20

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Solution

The fourth proportional to 59,854.60, 89,879.10 and 40,220.20 is: 60,395.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,854.60 : 89,879.10 = 40,220.20 : x
  2. Step 2: Convert to fraction form
    59,854.60/89,879.10 = 40,220.20/x
  3. Step 3: Cross multiply
    59,854.60x = 89,879.10 × 40,220.20
  4. Step 4: Simplify right side
    59,854.60x = 3,614,955,377.82
  5. Step 5: Solve for x
    x = 3,614,955,377.82/59,854.60
  6. Step 6: Final answer
    x = 60,395.62

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1.5x scale

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.