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Finding the Fourth Proportional to 15,788.26, 23,687.79 and 7,029.28

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Solution

The fourth proportional to 15,788.26, 23,687.79 and 7,029.28 is: 10,546.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,788.26 : 23,687.79 = 7,029.28 : x
  2. Step 2: Convert to fraction form
    15,788.26/23,687.79 = 7,029.28/x
  3. Step 3: Cross multiply
    15,788.26x = 23,687.79 × 7,029.28
  4. Step 4: Simplify right side
    15,788.26x = 166,508,108.49
  5. Step 5: Solve for x
    x = 166,508,108.49/15,788.26
  6. Step 6: Final answer
    x = 10,546.32

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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.