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Finding the Fourth Proportional to 6,797.34, 9,380.70 and 5,115.72

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Solution

The fourth proportional to 6,797.34, 9,380.70 and 5,115.72 is: 7,059.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,797.34 : 9,380.70 = 5,115.72 : x
  2. Step 2: Convert to fraction form
    6,797.34/9,380.70 = 5,115.72/x
  3. Step 3: Cross multiply
    6,797.34x = 9,380.70 × 5,115.72
  4. Step 4: Simplify right side
    6,797.34x = 47,989,034.60
  5. Step 5: Solve for x
    x = 47,989,034.60/6,797.34
  6. Step 6: Final answer
    x = 7,059.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.