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Finding the Fourth Proportional to 5,019.26, 6,926.51 and 2,781.26

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Solution

The fourth proportional to 5,019.26, 6,926.51 and 2,781.26 is: 3,838.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,019.26 : 6,926.51 = 2,781.26 : x
  2. Step 2: Convert to fraction form
    5,019.26/6,926.51 = 2,781.26/x
  3. Step 3: Cross multiply
    5,019.26x = 6,926.51 × 2,781.26
  4. Step 4: Simplify right side
    5,019.26x = 19,264,376.66
  5. Step 5: Solve for x
    x = 19,264,376.66/5,019.26
  6. Step 6: Final answer
    x = 3,838.09

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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.