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Finding the Fourth Proportional to 8,322.65, 12,483.67 and 2,479.11

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Solution

The fourth proportional to 8,322.65, 12,483.67 and 2,479.11 is: 3,718.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,322.65 : 12,483.67 = 2,479.11 : x
  2. Step 2: Convert to fraction form
    8,322.65/12,483.67 = 2,479.11/x
  3. Step 3: Cross multiply
    8,322.65x = 12,483.67 × 2,479.11
  4. Step 4: Simplify right side
    8,322.65x = 30,948,342.77
  5. Step 5: Solve for x
    x = 30,948,342.77/8,322.65
  6. Step 6: Final answer
    x = 3,718.57

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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.