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Finding the Fourth Proportional to 7,348.70, 11,023.05 and 5,015.90

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Solution

The fourth proportional to 7,348.70, 11,023.05 and 5,015.90 is: 7,523.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,348.70 : 11,023.05 = 5,015.90 : x
  2. Step 2: Convert to fraction form
    7,348.70/11,023.05 = 5,015.90/x
  3. Step 3: Cross multiply
    7,348.70x = 11,023.05 × 5,015.90
  4. Step 4: Simplify right side
    7,348.70x = 55,290,516.50
  5. Step 5: Solve for x
    x = 55,290,516.50/7,348.70
  6. Step 6: Final answer
    x = 7,523.85

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Similar ratio
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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.