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Finding the Fourth Proportional to 11,647.79, 16,073.74 and 6,342.52

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Solution

The fourth proportional to 11,647.79, 16,073.74 and 6,342.52 is: 8,752.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,647.79 : 16,073.74 = 6,342.52 : x
  2. Step 2: Convert to fraction form
    11,647.79/16,073.74 = 6,342.52/x
  3. Step 3: Cross multiply
    11,647.79x = 16,073.74 × 6,342.52
  4. Step 4: Simplify right side
    11,647.79x = 101,948,017.42
  5. Step 5: Solve for x
    x = 101,948,017.42/11,647.79
  6. Step 6: Final answer
    x = 8,752.56

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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.