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Finding the Fourth Proportional to 59,879.60, 89,776.20 and 39,114.80

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Solution

The fourth proportional to 59,879.60, 89,776.20 and 39,114.80 is: 58,643.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,879.60 : 89,776.20 = 39,114.80 : x
  2. Step 2: Convert to fraction form
    59,879.60/89,776.20 = 39,114.80/x
  3. Step 3: Cross multiply
    59,879.60x = 89,776.20 × 39,114.80
  4. Step 4: Simplify right side
    59,879.60x = 3,511,578,107.76
  5. Step 5: Solve for x
    x = 3,511,578,107.76/59,879.60
  6. Step 6: Final answer
    x = 58,643.98

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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.