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Finding the Fourth Proportional to 17,999.71, 26,997.69 and 4,851.28

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Solution

The fourth proportional to 17,999.71, 26,997.69 and 4,851.28 is: 7,276.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,999.71 : 26,997.69 = 4,851.28 : x
  2. Step 2: Convert to fraction form
    17,999.71/26,997.69 = 4,851.28/x
  3. Step 3: Cross multiply
    17,999.71x = 26,997.69 × 4,851.28
  4. Step 4: Simplify right side
    17,999.71x = 130,973,353.54
  5. Step 5: Solve for x
    x = 130,973,353.54/17,999.71
  6. Step 6: Final answer
    x = 7,276.41

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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.