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Finding the Fourth Proportional to 17,753, 26,628.78 and 5,272.52

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Solution

The fourth proportional to 17,753, 26,628.78 and 5,272.52 is: 7,908.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,753 : 26,628.78 = 5,272.52 : x
  2. Step 2: Convert to fraction form
    17,753/26,628.78 = 5,272.52/x
  3. Step 3: Cross multiply
    17,753x = 26,628.78 × 5,272.52
  4. Step 4: Simplify right side
    17,753x = 140,400,775.13
  5. Step 5: Solve for x
    x = 140,400,775.13/17,753
  6. Step 6: Final answer
    x = 7,908.57

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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.