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Finding the Fourth Proportional to 5,787.59, 8,681.76 and 2,865.11

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Solution

The fourth proportional to 5,787.59, 8,681.76 and 2,865.11 is: 4,297.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787.59 : 8,681.76 = 2,865.11 : x
  2. Step 2: Convert to fraction form
    5,787.59/8,681.76 = 2,865.11/x
  3. Step 3: Cross multiply
    5,787.59x = 8,681.76 × 2,865.11
  4. Step 4: Simplify right side
    5,787.59x = 24,874,153.98
  5. Step 5: Solve for x
    x = 24,874,153.98/5,787.59
  6. Step 6: Final answer
    x = 4,297.85

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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.