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Finding the Fourth Proportional to 3,906.90, 5,856.53 and 1,566.27

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Solution

The fourth proportional to 3,906.90, 5,856.53 and 1,566.27 is: 2,347.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906.90 : 5,856.53 = 1,566.27 : x
  2. Step 2: Convert to fraction form
    3,906.90/5,856.53 = 1,566.27/x
  3. Step 3: Cross multiply
    3,906.90x = 5,856.53 × 1,566.27
  4. Step 4: Simplify right side
    3,906.90x = 9,172,899.41
  5. Step 5: Solve for x
    x = 9,172,899.41/3,906.90
  6. Step 6: Final answer
    x = 2,347.87

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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.