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Finding the Fourth Proportional to 6,608.70, 9,120.21 and 3,624.72

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Solution

The fourth proportional to 6,608.70, 9,120.21 and 3,624.72 is: 5,002.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,608.70 : 9,120.21 = 3,624.72 : x
  2. Step 2: Convert to fraction form
    6,608.70/9,120.21 = 3,624.72/x
  3. Step 3: Cross multiply
    6,608.70x = 9,120.21 × 3,624.72
  4. Step 4: Simplify right side
    6,608.70x = 33,058,207.59
  5. Step 5: Solve for x
    x = 33,058,207.59/6,608.70
  6. Step 6: Final answer
    x = 5,002.23

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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.