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Finding the Fourth Proportional to 5,398.26, 7,449.78 and 3,008.34

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Solution

The fourth proportional to 5,398.26, 7,449.78 and 3,008.34 is: 4,151.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,398.26 : 7,449.78 = 3,008.34 : x
  2. Step 2: Convert to fraction form
    5,398.26/7,449.78 = 3,008.34/x
  3. Step 3: Cross multiply
    5,398.26x = 7,449.78 × 3,008.34
  4. Step 4: Simplify right side
    5,398.26x = 22,411,471.17
  5. Step 5: Solve for x
    x = 22,411,471.17/5,398.26
  6. Step 6: Final answer
    x = 4,151.61

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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.