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Finding the Fourth Proportional to 5,398.62, 7,449.79 and 3,008.45

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Solution

The fourth proportional to 5,398.62, 7,449.79 and 3,008.45 is: 4,151.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,398.62 : 7,449.79 = 3,008.45 : x
  2. Step 2: Convert to fraction form
    5,398.62/7,449.79 = 3,008.45/x
  3. Step 3: Cross multiply
    5,398.62x = 7,449.79 × 3,008.45
  4. Step 4: Simplify right side
    5,398.62x = 22,412,295.56
  5. Step 5: Solve for x
    x = 22,412,295.56/5,398.62
  6. Step 6: Final answer
    x = 4,151.49

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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.