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Finding the Fourth Proportional to 12,251.84, 18,374.72 and 5,671.68

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Solution

The fourth proportional to 12,251.84, 18,374.72 and 5,671.68 is: 8,506.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251.84 : 18,374.72 = 5,671.68 : x
  2. Step 2: Convert to fraction form
    12,251.84/18,374.72 = 5,671.68/x
  3. Step 3: Cross multiply
    12,251.84x = 18,374.72 × 5,671.68
  4. Step 4: Simplify right side
    12,251.84x = 104,215,531.93
  5. Step 5: Solve for x
    x = 104,215,531.93/12,251.84
  6. Step 6: Final answer
    x = 8,506.11

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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.