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Finding the Fourth Proportional to 5,739.18, 7,920.03 and 3,350.79

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Solution

The fourth proportional to 5,739.18, 7,920.03 and 3,350.79 is: 4,624.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,739.18 : 7,920.03 = 3,350.79 : x
  2. Step 2: Convert to fraction form
    5,739.18/7,920.03 = 3,350.79/x
  3. Step 3: Cross multiply
    5,739.18x = 7,920.03 × 3,350.79
  4. Step 4: Simplify right side
    5,739.18x = 26,538,357.32
  5. Step 5: Solve for x
    x = 26,538,357.32/5,739.18
  6. Step 6: Final answer
    x = 4,624.07

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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.