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Finding the Fourth Proportional to 6,809.52, 10,212.30 and 2,860.66

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Solution

The fourth proportional to 6,809.52, 10,212.30 and 2,860.66 is: 4,290.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,809.52 : 10,212.30 = 2,860.66 : x
  2. Step 2: Convert to fraction form
    6,809.52/10,212.30 = 2,860.66/x
  3. Step 3: Cross multiply
    6,809.52x = 10,212.30 × 2,860.66
  4. Step 4: Simplify right side
    6,809.52x = 29,213,918.12
  5. Step 5: Solve for x
    x = 29,213,918.12/6,809.52
  6. Step 6: Final answer
    x = 4,290.16

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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.