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Finding the Fourth Proportional to 7,305.56, 10,951.02 and 3,147.32

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Solution

The fourth proportional to 7,305.56, 10,951.02 and 3,147.32 is: 4,717.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,305.56 : 10,951.02 = 3,147.32 : x
  2. Step 2: Convert to fraction form
    7,305.56/10,951.02 = 3,147.32/x
  3. Step 3: Cross multiply
    7,305.56x = 10,951.02 × 3,147.32
  4. Step 4: Simplify right side
    7,305.56x = 34,466,364.27
  5. Step 5: Solve for x
    x = 34,466,364.27/7,305.56
  6. Step 6: Final answer
    x = 4,717.83

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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.