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Finding the Fourth Proportional to 2,572.92, 3,859.20 and 1,473.84

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Solution

The fourth proportional to 2,572.92, 3,859.20 and 1,473.84 is: 2,210.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,572.92 : 3,859.20 = 1,473.84 : x
  2. Step 2: Convert to fraction form
    2,572.92/3,859.20 = 1,473.84/x
  3. Step 3: Cross multiply
    2,572.92x = 3,859.20 × 1,473.84
  4. Step 4: Simplify right side
    2,572.92x = 5,687,843.33
  5. Step 5: Solve for x
    x = 5,687,843.33/2,572.92
  6. Step 6: Final answer
    x = 2,210.66

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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.