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Finding the Fourth Proportional to 10,112.84, 15,168.04 and 4,268.69

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Solution

The fourth proportional to 10,112.84, 15,168.04 and 4,268.69 is: 6,402.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,112.84 : 15,168.04 = 4,268.69 : x
  2. Step 2: Convert to fraction form
    10,112.84/15,168.04 = 4,268.69/x
  3. Step 3: Cross multiply
    10,112.84x = 15,168.04 × 4,268.69
  4. Step 4: Simplify right side
    10,112.84x = 64,747,660.67
  5. Step 5: Solve for x
    x = 64,747,660.67/10,112.84
  6. Step 6: Final answer
    x = 6,402.52

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.