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Finding the Fourth Proportional to 10,175.74, 15,269.48 and 5,495.82

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Solution

The fourth proportional to 10,175.74, 15,269.48 and 5,495.82 is: 8,246.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,175.74 : 15,269.48 = 5,495.82 : x
  2. Step 2: Convert to fraction form
    10,175.74/15,269.48 = 5,495.82/x
  3. Step 3: Cross multiply
    10,175.74x = 15,269.48 × 5,495.82
  4. Step 4: Simplify right side
    10,175.74x = 83,918,313.57
  5. Step 5: Solve for x
    x = 83,918,313.57/10,175.74
  6. Step 6: Final answer
    x = 8,246.90

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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.