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Finding the Fourth Proportional to 6,707.38, 9,255.75 and 3,723.21

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Solution

The fourth proportional to 6,707.38, 9,255.75 and 3,723.21 is: 5,137.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,707.38 : 9,255.75 = 3,723.21 : x
  2. Step 2: Convert to fraction form
    6,707.38/9,255.75 = 3,723.21/x
  3. Step 3: Cross multiply
    6,707.38x = 9,255.75 × 3,723.21
  4. Step 4: Simplify right side
    6,707.38x = 34,461,100.96
  5. Step 5: Solve for x
    x = 34,461,100.96/6,707.38
  6. Step 6: Final answer
    x = 5,137.79

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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.