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Finding the Fourth Proportional to 6,674.68, 9,211.74 and 3,842.15

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Solution

The fourth proportional to 6,674.68, 9,211.74 and 3,842.15 is: 5,302.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,674.68 : 9,211.74 = 3,842.15 : x
  2. Step 2: Convert to fraction form
    6,674.68/9,211.74 = 3,842.15/x
  3. Step 3: Cross multiply
    6,674.68x = 9,211.74 × 3,842.15
  4. Step 4: Simplify right side
    6,674.68x = 35,392,909.87
  5. Step 5: Solve for x
    x = 35,392,909.87/6,674.68
  6. Step 6: Final answer
    x = 5,302.56

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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.