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Finding the Fourth Proportional to 12,843.52, 19,264.99 and 5,918.02

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Solution

The fourth proportional to 12,843.52, 19,264.99 and 5,918.02 is: 8,876.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,843.52 : 19,264.99 = 5,918.02 : x
  2. Step 2: Convert to fraction form
    12,843.52/19,264.99 = 5,918.02/x
  3. Step 3: Cross multiply
    12,843.52x = 19,264.99 × 5,918.02
  4. Step 4: Simplify right side
    12,843.52x = 114,010,596.12
  5. Step 5: Solve for x
    x = 114,010,596.12/12,843.52
  6. Step 6: Final answer
    x = 8,876.90

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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.