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Finding the Fourth Proportional to 3,910.61, 5,867.02 and 1,572.26

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Solution

The fourth proportional to 3,910.61, 5,867.02 and 1,572.26 is: 2,358.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910.61 : 5,867.02 = 1,572.26 : x
  2. Step 2: Convert to fraction form
    3,910.61/5,867.02 = 1,572.26/x
  3. Step 3: Cross multiply
    3,910.61x = 5,867.02 × 1,572.26
  4. Step 4: Simplify right side
    3,910.61x = 9,224,480.87
  5. Step 5: Solve for x
    x = 9,224,480.87/3,910.61
  6. Step 6: Final answer
    x = 2,358.83

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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.