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Finding the Fourth Proportional to 12,397.92, 18,601.20 and 4,608.96

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Solution

The fourth proportional to 12,397.92, 18,601.20 and 4,608.96 is: 6,915.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,397.92 : 18,601.20 = 4,608.96 : x
  2. Step 2: Convert to fraction form
    12,397.92/18,601.20 = 4,608.96/x
  3. Step 3: Cross multiply
    12,397.92x = 18,601.20 × 4,608.96
  4. Step 4: Simplify right side
    12,397.92x = 85,732,186.75
  5. Step 5: Solve for x
    x = 85,732,186.75/12,397.92
  6. Step 6: Final answer
    x = 6,915.05

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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.