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Finding the Fourth Proportional to 8,838.72, 12,196.08 and 5,112

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Solution

The fourth proportional to 8,838.72, 12,196.08 and 5,112 is: 7,053.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,838.72 : 12,196.08 = 5,112 : x
  2. Step 2: Convert to fraction form
    8,838.72/12,196.08 = 5,112/x
  3. Step 3: Cross multiply
    8,838.72x = 12,196.08 × 5,112
  4. Step 4: Simplify right side
    8,838.72x = 62,346,360.96
  5. Step 5: Solve for x
    x = 62,346,360.96/8,838.72
  6. Step 6: Final answer
    x = 7,053.78

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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.