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Finding the Fourth Proportional to 6,609.33, 9,121 and 3,625.17

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Solution

The fourth proportional to 6,609.33, 9,121 and 3,625.17 is: 5,002.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609.33 : 9,121 = 3,625.17 : x
  2. Step 2: Convert to fraction form
    6,609.33/9,121 = 3,625.17/x
  3. Step 3: Cross multiply
    6,609.33x = 9,121 × 3,625.17
  4. Step 4: Simplify right side
    6,609.33x = 33,065,175.57
  5. Step 5: Solve for x
    x = 33,065,175.57/6,609.33
  6. Step 6: Final answer
    x = 5,002.80

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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.