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Finding the Fourth Proportional to 38,891.80, 58,337.70 and 36,040.60

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Solution

The fourth proportional to 38,891.80, 58,337.70 and 36,040.60 is: 54,060.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,891.80 : 58,337.70 = 36,040.60 : x
  2. Step 2: Convert to fraction form
    38,891.80/58,337.70 = 36,040.60/x
  3. Step 3: Cross multiply
    38,891.80x = 58,337.70 × 36,040.60
  4. Step 4: Simplify right side
    38,891.80x = 2,102,525,710.62
  5. Step 5: Solve for x
    x = 2,102,525,710.62/38,891.80
  6. Step 6: Final answer
    x = 54,060.90

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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.