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Finding the Fourth Proportional to 6,777.61, 9,353.69 and 3,793.40

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Solution

The fourth proportional to 6,777.61, 9,353.69 and 3,793.40 is: 5,235.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,777.61 : 9,353.69 = 3,793.40 : x
  2. Step 2: Convert to fraction form
    6,777.61/9,353.69 = 3,793.40/x
  3. Step 3: Cross multiply
    6,777.61x = 9,353.69 × 3,793.40
  4. Step 4: Simplify right side
    6,777.61x = 35,482,306.29
  5. Step 5: Solve for x
    x = 35,482,306.29/6,777.61
  6. Step 6: Final answer
    x = 5,235.22

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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.