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Finding the Fourth Proportional to 8,476.65, 12,717.09 and 5,982.71

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Solution

The fourth proportional to 8,476.65, 12,717.09 and 5,982.71 is: 8,975.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,476.65 : 12,717.09 = 5,982.71 : x
  2. Step 2: Convert to fraction form
    8,476.65/12,717.09 = 5,982.71/x
  3. Step 3: Cross multiply
    8,476.65x = 12,717.09 × 5,982.71
  4. Step 4: Simplify right side
    8,476.65x = 76,082,597.93
  5. Step 5: Solve for x
    x = 76,082,597.93/8,476.65
  6. Step 6: Final answer
    x = 8,975.55

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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.