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Finding the Fourth Proportional to 6,695.56, 9,239.92 and 3,863.52

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Solution

The fourth proportional to 6,695.56, 9,239.92 and 3,863.52 is: 5,331.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,695.56 : 9,239.92 = 3,863.52 : x
  2. Step 2: Convert to fraction form
    6,695.56/9,239.92 = 3,863.52/x
  3. Step 3: Cross multiply
    6,695.56x = 9,239.92 × 3,863.52
  4. Step 4: Simplify right side
    6,695.56x = 35,698,615.72
  5. Step 5: Solve for x
    x = 35,698,615.72/6,695.56
  6. Step 6: Final answer
    x = 5,331.68

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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.