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Finding the Fourth Proportional to 54,007.70, 80,752.35 and 40,010.90

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Solution

The fourth proportional to 54,007.70, 80,752.35 and 40,010.90 is: 59,824.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,007.70 : 80,752.35 = 40,010.90 : x
  2. Step 2: Convert to fraction form
    54,007.70/80,752.35 = 40,010.90/x
  3. Step 3: Cross multiply
    54,007.70x = 80,752.35 × 40,010.90
  4. Step 4: Simplify right side
    54,007.70x = 3,230,974,200.62
  5. Step 5: Solve for x
    x = 3,230,974,200.62/54,007.70
  6. Step 6: Final answer
    x = 59,824.33

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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.