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Finding the Fourth Proportional to 11,750.53, 17,625.80 and 3,959.34

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Solution

The fourth proportional to 11,750.53, 17,625.80 and 3,959.34 is: 5,939.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,750.53 : 17,625.80 = 3,959.34 : x
  2. Step 2: Convert to fraction form
    11,750.53/17,625.80 = 3,959.34/x
  3. Step 3: Cross multiply
    11,750.53x = 17,625.80 × 3,959.34
  4. Step 4: Simplify right side
    11,750.53x = 69,786,534.97
  5. Step 5: Solve for x
    x = 69,786,534.97/11,750.53
  6. Step 6: Final answer
    x = 5,939.01

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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.