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Finding the Fourth Proportional to 12,260.76, 18,392.87 and 4,865.97

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Solution

The fourth proportional to 12,260.76, 18,392.87 and 4,865.97 is: 7,299.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,260.76 : 18,392.87 = 4,865.97 : x
  2. Step 2: Convert to fraction form
    12,260.76/18,392.87 = 4,865.97/x
  3. Step 3: Cross multiply
    12,260.76x = 18,392.87 × 4,865.97
  4. Step 4: Simplify right side
    12,260.76x = 89,499,129.30
  5. Step 5: Solve for x
    x = 89,499,129.30/12,260.76
  6. Step 6: Final answer
    x = 7,299.64

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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.