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Finding the Fourth Proportional to 12,500.78, 17,257 and 7,194.56

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Solution

The fourth proportional to 12,500.78, 17,257 and 7,194.56 is: 9,931.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,500.78 : 17,257 = 7,194.56 : x
  2. Step 2: Convert to fraction form
    12,500.78/17,257 = 7,194.56/x
  3. Step 3: Cross multiply
    12,500.78x = 17,257 × 7,194.56
  4. Step 4: Simplify right side
    12,500.78x = 124,156,521.92
  5. Step 5: Solve for x
    x = 124,156,521.92/12,500.78
  6. Step 6: Final answer
    x = 9,931.90

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.