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Finding the Fourth Proportional to 5,787.16, 8,678.95 and 2,088.91

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Solution

The fourth proportional to 5,787.16, 8,678.95 and 2,088.91 is: 3,132.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787.16 : 8,678.95 = 2,088.91 : x
  2. Step 2: Convert to fraction form
    5,787.16/8,678.95 = 2,088.91/x
  3. Step 3: Cross multiply
    5,787.16x = 8,678.95 × 2,088.91
  4. Step 4: Simplify right side
    5,787.16x = 18,129,491.61
  5. Step 5: Solve for x
    x = 18,129,491.61/5,787.16
  6. Step 6: Final answer
    x = 3,132.71

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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.