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Finding the Fourth Proportional to 17,172.48, 25,741.60 and 8,856.48

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Solution

The fourth proportional to 17,172.48, 25,741.60 and 8,856.48 is: 13,275.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,172.48 : 25,741.60 = 8,856.48 : x
  2. Step 2: Convert to fraction form
    17,172.48/25,741.60 = 8,856.48/x
  3. Step 3: Cross multiply
    17,172.48x = 25,741.60 × 8,856.48
  4. Step 4: Simplify right side
    17,172.48x = 227,979,965.57
  5. Step 5: Solve for x
    x = 227,979,965.57/17,172.48
  6. Step 6: Final answer
    x = 13,275.89

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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.