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Finding the Fourth Proportional to 8,873.84, 12,251.40 and 6,231.92

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Solution

The fourth proportional to 8,873.84, 12,251.40 and 6,231.92 is: 8,603.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,873.84 : 12,251.40 = 6,231.92 : x
  2. Step 2: Convert to fraction form
    8,873.84/12,251.40 = 6,231.92/x
  3. Step 3: Cross multiply
    8,873.84x = 12,251.40 × 6,231.92
  4. Step 4: Simplify right side
    8,873.84x = 76,349,744.69
  5. Step 5: Solve for x
    x = 76,349,744.69/8,873.84
  6. Step 6: Final answer
    x = 8,603.91

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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.