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Finding the Fourth Proportional to 7,255.44, 10,881.72 and 2,868.48

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Solution

The fourth proportional to 7,255.44, 10,881.72 and 2,868.48 is: 4,302.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,255.44 : 10,881.72 = 2,868.48 : x
  2. Step 2: Convert to fraction form
    7,255.44/10,881.72 = 2,868.48/x
  3. Step 3: Cross multiply
    7,255.44x = 10,881.72 × 2,868.48
  4. Step 4: Simplify right side
    7,255.44x = 31,213,996.19
  5. Step 5: Solve for x
    x = 31,213,996.19/7,255.44
  6. Step 6: Final answer
    x = 4,302.15

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Why These Related Problems?

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