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Finding the Fourth Proportional to 8,834.90, 12,191.63 and 4,855.91

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Solution

The fourth proportional to 8,834.90, 12,191.63 and 4,855.91 is: 6,700.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,834.90 : 12,191.63 = 4,855.91 : x
  2. Step 2: Convert to fraction form
    8,834.90/12,191.63 = 4,855.91/x
  3. Step 3: Cross multiply
    8,834.90x = 12,191.63 × 4,855.91
  4. Step 4: Simplify right side
    8,834.90x = 59,201,372.80
  5. Step 5: Solve for x
    x = 59,201,372.80/8,834.90
  6. Step 6: Final answer
    x = 6,700.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.