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Finding the Fourth Proportional to 7,398.70, 11,110.20 and 4,944.40

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Solution

The fourth proportional to 7,398.70, 11,110.20 and 4,944.40 is: 7,424.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,398.70 : 11,110.20 = 4,944.40 : x
  2. Step 2: Convert to fraction form
    7,398.70/11,110.20 = 4,944.40/x
  3. Step 3: Cross multiply
    7,398.70x = 11,110.20 × 4,944.40
  4. Step 4: Simplify right side
    7,398.70x = 54,933,272.88
  5. Step 5: Solve for x
    x = 54,933,272.88/7,398.70
  6. Step 6: Final answer
    x = 7,424.72

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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.