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Finding the Fourth Proportional to 8,744.57, 12,063.65 and 5,910.91

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Solution

The fourth proportional to 8,744.57, 12,063.65 and 5,910.91 is: 8,154.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,744.57 : 12,063.65 = 5,910.91 : x
  2. Step 2: Convert to fraction form
    8,744.57/12,063.65 = 5,910.91/x
  3. Step 3: Cross multiply
    8,744.57x = 12,063.65 × 5,910.91
  4. Step 4: Simplify right side
    8,744.57x = 71,307,149.42
  5. Step 5: Solve for x
    x = 71,307,149.42/8,744.57
  6. Step 6: Final answer
    x = 8,154.45

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1.5x scale

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.