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Finding the Fourth Proportional to 3,998.77, 5,517.20 and 2,582.52

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Solution

The fourth proportional to 3,998.77, 5,517.20 and 2,582.52 is: 3,563.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.77 : 5,517.20 = 2,582.52 : x
  2. Step 2: Convert to fraction form
    3,998.77/5,517.20 = 2,582.52/x
  3. Step 3: Cross multiply
    3,998.77x = 5,517.20 × 2,582.52
  4. Step 4: Simplify right side
    3,998.77x = 14,248,253.68
  5. Step 5: Solve for x
    x = 14,248,253.68/3,998.77
  6. Step 6: Final answer
    x = 3,563.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.