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Finding the Fourth Proportional to 7,404.70, 11,119.20 and 4,950.40

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Solution

The fourth proportional to 7,404.70, 11,119.20 and 4,950.40 is: 7,433.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,404.70 : 11,119.20 = 4,950.40 : x
  2. Step 2: Convert to fraction form
    7,404.70/11,119.20 = 4,950.40/x
  3. Step 3: Cross multiply
    7,404.70x = 11,119.20 × 4,950.40
  4. Step 4: Simplify right side
    7,404.70x = 55,044,487.68
  5. Step 5: Solve for x
    x = 55,044,487.68/7,404.70
  6. Step 6: Final answer
    x = 7,433.72

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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.