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Finding the Fourth Proportional to 17,862.72, 26,795.28 and 6,767.28

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Solution

The fourth proportional to 17,862.72, 26,795.28 and 6,767.28 is: 10,151.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,862.72 : 26,795.28 = 6,767.28 : x
  2. Step 2: Convert to fraction form
    17,862.72/26,795.28 = 6,767.28/x
  3. Step 3: Cross multiply
    17,862.72x = 26,795.28 × 6,767.28
  4. Step 4: Simplify right side
    17,862.72x = 181,331,162.44
  5. Step 5: Solve for x
    x = 181,331,162.44/17,862.72
  6. Step 6: Final answer
    x = 10,151.37

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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.