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Finding the Fourth Proportional to 40,015.20, 60,022.80 and 35,932.80

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Solution

The fourth proportional to 40,015.20, 60,022.80 and 35,932.80 is: 53,899.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,015.20 : 60,022.80 = 35,932.80 : x
  2. Step 2: Convert to fraction form
    40,015.20/60,022.80 = 35,932.80/x
  3. Step 3: Cross multiply
    40,015.20x = 60,022.80 × 35,932.80
  4. Step 4: Simplify right side
    40,015.20x = 2,156,787,267.84
  5. Step 5: Solve for x
    x = 2,156,787,267.84/40,015.20
  6. Step 6: Final answer
    x = 53,899.20

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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.