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Finding the Fourth Proportional to 8,859.10, 13,281.11 and 3,926.05

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Solution

The fourth proportional to 8,859.10, 13,281.11 and 3,926.05 is: 5,885.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.10 : 13,281.11 = 3,926.05 : x
  2. Step 2: Convert to fraction form
    8,859.10/13,281.11 = 3,926.05/x
  3. Step 3: Cross multiply
    8,859.10x = 13,281.11 × 3,926.05
  4. Step 4: Simplify right side
    8,859.10x = 52,142,249.08
  5. Step 5: Solve for x
    x = 52,142,249.08/8,859.10
  6. Step 6: Final answer
    x = 5,885.73

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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.