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Finding the Fourth Proportional to 12,251.20, 18,364.46 and 4,848.20

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Solution

The fourth proportional to 12,251.20, 18,364.46 and 4,848.20 is: 7,267.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251.20 : 18,364.46 = 4,848.20 : x
  2. Step 2: Convert to fraction form
    12,251.20/18,364.46 = 4,848.20/x
  3. Step 3: Cross multiply
    12,251.20x = 18,364.46 × 4,848.20
  4. Step 4: Simplify right side
    12,251.20x = 89,034,574.97
  5. Step 5: Solve for x
    x = 89,034,574.97/12,251.20
  6. Step 6: Final answer
    x = 7,267.42

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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.