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Finding the Fourth Proportional to 3,976.92, 5,488.02 and 2,404.74

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Solution

The fourth proportional to 3,976.92, 5,488.02 and 2,404.74 is: 3,318.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.92 : 5,488.02 = 2,404.74 : x
  2. Step 2: Convert to fraction form
    3,976.92/5,488.02 = 2,404.74/x
  3. Step 3: Cross multiply
    3,976.92x = 5,488.02 × 2,404.74
  4. Step 4: Simplify right side
    3,976.92x = 13,197,261.21
  5. Step 5: Solve for x
    x = 13,197,261.21/3,976.92
  6. Step 6: Final answer
    x = 3,318.46

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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.