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Finding the Fourth Proportional to 7,202.25, 10,805.20 and 2,008.13

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Solution

The fourth proportional to 7,202.25, 10,805.20 and 2,008.13 is: 3,012.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,202.25 : 10,805.20 = 2,008.13 : x
  2. Step 2: Convert to fraction form
    7,202.25/10,805.20 = 2,008.13/x
  3. Step 3: Cross multiply
    7,202.25x = 10,805.20 × 2,008.13
  4. Step 4: Simplify right side
    7,202.25x = 21,698,187.23
  5. Step 5: Solve for x
    x = 21,698,187.23/7,202.25
  6. Step 6: Final answer
    x = 3,012.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.