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Finding the Fourth Proportional to 8,794.85, 13,191.80 and 2,220.66

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Solution

The fourth proportional to 8,794.85, 13,191.80 and 2,220.66 is: 3,330.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,794.85 : 13,191.80 = 2,220.66 : x
  2. Step 2: Convert to fraction form
    8,794.85/13,191.80 = 2,220.66/x
  3. Step 3: Cross multiply
    8,794.85x = 13,191.80 × 2,220.66
  4. Step 4: Simplify right side
    8,794.85x = 29,294,491.48
  5. Step 5: Solve for x
    x = 29,294,491.48/8,794.85
  6. Step 6: Final answer
    x = 3,330.87

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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.