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Finding the Fourth Proportional to 6,693.56, 9,238.20 and 6,398.27

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Solution

The fourth proportional to 6,693.56, 9,238.20 and 6,398.27 is: 8,830.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,693.56 : 9,238.20 = 6,398.27 : x
  2. Step 2: Convert to fraction form
    6,693.56/9,238.20 = 6,398.27/x
  3. Step 3: Cross multiply
    6,693.56x = 9,238.20 × 6,398.27
  4. Step 4: Simplify right side
    6,693.56x = 59,108,497.91
  5. Step 5: Solve for x
    x = 59,108,497.91/6,693.56
  6. Step 6: Final answer
    x = 8,830.65

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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.