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Finding the Fourth Proportional to 8,236.48, 11,368.12 and 5,251.64

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Solution

The fourth proportional to 8,236.48, 11,368.12 and 5,251.64 is: 7,248.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.48 : 11,368.12 = 5,251.64 : x
  2. Step 2: Convert to fraction form
    8,236.48/11,368.12 = 5,251.64/x
  3. Step 3: Cross multiply
    8,236.48x = 11,368.12 × 5,251.64
  4. Step 4: Simplify right side
    8,236.48x = 59,701,273.72
  5. Step 5: Solve for x
    x = 59,701,273.72/8,236.48
  6. Step 6: Final answer
    x = 7,248.40

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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.