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Finding the Fourth Proportional to 59,843.60, 89,722.20 and 39,078.80

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Solution

The fourth proportional to 59,843.60, 89,722.20 and 39,078.80 is: 58,589.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,843.60 : 89,722.20 = 39,078.80 : x
  2. Step 2: Convert to fraction form
    59,843.60/89,722.20 = 39,078.80/x
  3. Step 3: Cross multiply
    59,843.60x = 89,722.20 × 39,078.80
  4. Step 4: Simplify right side
    59,843.60x = 3,506,235,909.36
  5. Step 5: Solve for x
    x = 3,506,235,909.36/59,843.60
  6. Step 6: Final answer
    x = 58,589.99

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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.