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Finding the Fourth Proportional to 5,398.04, 7,448.82 and 3,007.92

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Solution

The fourth proportional to 5,398.04, 7,448.82 and 3,007.92 is: 4,150.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,398.04 : 7,448.82 = 3,007.92 : x
  2. Step 2: Convert to fraction form
    5,398.04/7,448.82 = 3,007.92/x
  3. Step 3: Cross multiply
    5,398.04x = 7,448.82 × 3,007.92
  4. Step 4: Simplify right side
    5,398.04x = 22,405,454.65
  5. Step 5: Solve for x
    x = 22,405,454.65/5,398.04
  6. Step 6: Final answer
    x = 4,150.66

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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.