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Finding the Fourth Proportional to 8,834.91, 13,251.54 and 2,991.57

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Solution

The fourth proportional to 8,834.91, 13,251.54 and 2,991.57 is: 4,487.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,834.91 : 13,251.54 = 2,991.57 : x
  2. Step 2: Convert to fraction form
    8,834.91/13,251.54 = 2,991.57/x
  3. Step 3: Cross multiply
    8,834.91x = 13,251.54 × 2,991.57
  4. Step 4: Simplify right side
    8,834.91x = 39,642,909.52
  5. Step 5: Solve for x
    x = 39,642,909.52/8,834.91
  6. Step 6: Final answer
    x = 4,487.08

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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.