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Finding the Fourth Proportional to 7,444.60, 11,148.90 and 3,974.20

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Solution

The fourth proportional to 7,444.60, 11,148.90 and 3,974.20 is: 5,951.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,444.60 : 11,148.90 = 3,974.20 : x
  2. Step 2: Convert to fraction form
    7,444.60/11,148.90 = 3,974.20/x
  3. Step 3: Cross multiply
    7,444.60x = 11,148.90 × 3,974.20
  4. Step 4: Simplify right side
    7,444.60x = 44,307,958.38
  5. Step 5: Solve for x
    x = 44,307,958.38/7,444.60
  6. Step 6: Final answer
    x = 5,951.69

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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.