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Finding the Fourth Proportional to 6,691.93, 9,235.11 and 4,038.83

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Solution

The fourth proportional to 6,691.93, 9,235.11 and 4,038.83 is: 5,573.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,691.93 : 9,235.11 = 4,038.83 : x
  2. Step 2: Convert to fraction form
    6,691.93/9,235.11 = 4,038.83/x
  3. Step 3: Cross multiply
    6,691.93x = 9,235.11 × 4,038.83
  4. Step 4: Simplify right side
    6,691.93x = 37,299,042.92
  5. Step 5: Solve for x
    x = 37,299,042.92/6,691.93
  6. Step 6: Final answer
    x = 5,573.73

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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.