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Finding the Fourth Proportional to 11,970.55, 17,959.44 and 5,394.97

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Solution

The fourth proportional to 11,970.55, 17,959.44 and 5,394.97 is: 8,094.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,970.55 : 17,959.44 = 5,394.97 : x
  2. Step 2: Convert to fraction form
    11,970.55/17,959.44 = 5,394.97/x
  3. Step 3: Cross multiply
    11,970.55x = 17,959.44 × 5,394.97
  4. Step 4: Simplify right side
    11,970.55x = 96,890,640.02
  5. Step 5: Solve for x
    x = 96,890,640.02/11,970.55
  6. Step 6: Final answer
    x = 8,094.08

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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.