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Finding the Fourth Proportional to 40,891.80, 61,337.70 and 40,632.60

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Solution

The fourth proportional to 40,891.80, 61,337.70 and 40,632.60 is: 60,948.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,891.80 : 61,337.70 = 40,632.60 : x
  2. Step 2: Convert to fraction form
    40,891.80/61,337.70 = 40,632.60/x
  3. Step 3: Cross multiply
    40,891.80x = 61,337.70 × 40,632.60
  4. Step 4: Simplify right side
    40,891.80x = 2,492,310,229.02
  5. Step 5: Solve for x
    x = 2,492,310,229.02/40,891.80
  6. Step 6: Final answer
    x = 60,948.90

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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.