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Finding the Fourth Proportional to 8,859.16, 13,281.20 and 3,926.11

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Solution

The fourth proportional to 8,859.16, 13,281.20 and 3,926.11 is: 5,885.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.16 : 13,281.20 = 3,926.11 : x
  2. Step 2: Convert to fraction form
    8,859.16/13,281.20 = 3,926.11/x
  3. Step 3: Cross multiply
    8,859.16x = 13,281.20 × 3,926.11
  4. Step 4: Simplify right side
    8,859.16x = 52,143,432.50
  5. Step 5: Solve for x
    x = 52,143,432.50/8,859.16
  6. Step 6: Final answer
    x = 5,885.82

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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.