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Finding the Fourth Proportional to 5,912.76, 8,869.16 and 5,551.91

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Solution

The fourth proportional to 5,912.76, 8,869.16 and 5,551.91 is: 8,327.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,912.76 : 8,869.16 = 5,551.91 : x
  2. Step 2: Convert to fraction form
    5,912.76/8,869.16 = 5,551.91/x
  3. Step 3: Cross multiply
    5,912.76x = 8,869.16 × 5,551.91
  4. Step 4: Simplify right side
    5,912.76x = 49,240,780.89
  5. Step 5: Solve for x
    x = 49,240,780.89/5,912.76
  6. Step 6: Final answer
    x = 8,327.88

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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.