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Finding the Fourth Proportional to 4,280.68, 5,869.53 and 3,859.38

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Solution

The fourth proportional to 4,280.68, 5,869.53 and 3,859.38 is: 5,291.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.68 : 5,869.53 = 3,859.38 : x
  2. Step 2: Convert to fraction form
    4,280.68/5,869.53 = 3,859.38/x
  3. Step 3: Cross multiply
    4,280.68x = 5,869.53 × 3,859.38
  4. Step 4: Simplify right side
    4,280.68x = 22,652,717.34
  5. Step 5: Solve for x
    x = 22,652,717.34/4,280.68
  6. Step 6: Final answer
    x = 5,291.86

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.