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Finding the Fourth Proportional to 8,876.99, 12,251.69 and 5,292.39

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Solution

The fourth proportional to 8,876.99, 12,251.69 and 5,292.39 is: 7,304.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,876.99 : 12,251.69 = 5,292.39 : x
  2. Step 2: Convert to fraction form
    8,876.99/12,251.69 = 5,292.39/x
  3. Step 3: Cross multiply
    8,876.99x = 12,251.69 × 5,292.39
  4. Step 4: Simplify right side
    8,876.99x = 64,840,633.92
  5. Step 5: Solve for x
    x = 64,840,633.92/8,876.99
  6. Step 6: Final answer
    x = 7,304.35

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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.