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Finding the Fourth Proportional to 5,732.79, 8,584.61 and 5,251.65

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Solution

The fourth proportional to 5,732.79, 8,584.61 and 5,251.65 is: 7,864.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,732.79 : 8,584.61 = 5,251.65 : x
  2. Step 2: Convert to fraction form
    5,732.79/8,584.61 = 5,251.65/x
  3. Step 3: Cross multiply
    5,732.79x = 8,584.61 × 5,251.65
  4. Step 4: Simplify right side
    5,732.79x = 45,083,340.85
  5. Step 5: Solve for x
    x = 45,083,340.85/5,732.79
  6. Step 6: Final answer
    x = 7,864.12

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1.5x scale

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.