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Finding the Fourth Proportional to 8,672.25, 13,011.29 and 2,750.10

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Solution

The fourth proportional to 8,672.25, 13,011.29 and 2,750.10 is: 4,126.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.25 : 13,011.29 = 2,750.10 : x
  2. Step 2: Convert to fraction form
    8,672.25/13,011.29 = 2,750.10/x
  3. Step 3: Cross multiply
    8,672.25x = 13,011.29 × 2,750.10
  4. Step 4: Simplify right side
    8,672.25x = 35,782,348.63
  5. Step 5: Solve for x
    x = 35,782,348.63/8,672.25
  6. Step 6: Final answer
    x = 4,126.07

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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.