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Finding the Fourth Proportional to 5,590.08, 7,713.78 and 3,351.54

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Solution

The fourth proportional to 5,590.08, 7,713.78 and 3,351.54 is: 4,624.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,590.08 : 7,713.78 = 3,351.54 : x
  2. Step 2: Convert to fraction form
    5,590.08/7,713.78 = 3,351.54/x
  3. Step 3: Cross multiply
    5,590.08x = 7,713.78 × 3,351.54
  4. Step 4: Simplify right side
    5,590.08x = 25,853,042.22
  5. Step 5: Solve for x
    x = 25,853,042.22/5,590.08
  6. Step 6: Final answer
    x = 4,624.81

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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.