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Finding the Fourth Proportional to 6,962.70, 9,608.46 and 3,818.90

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Solution

The fourth proportional to 6,962.70, 9,608.46 and 3,818.90 is: 5,270.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,962.70 : 9,608.46 = 3,818.90 : x
  2. Step 2: Convert to fraction form
    6,962.70/9,608.46 = 3,818.90/x
  3. Step 3: Cross multiply
    6,962.70x = 9,608.46 × 3,818.90
  4. Step 4: Simplify right side
    6,962.70x = 36,693,747.89
  5. Step 5: Solve for x
    x = 36,693,747.89/6,962.70
  6. Step 6: Final answer
    x = 5,270.05

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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.