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Finding the Fourth Proportional to 8,820.06, 12,171.06 and 5,043.39

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Solution

The fourth proportional to 8,820.06, 12,171.06 and 5,043.39 is: 6,959.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,820.06 : 12,171.06 = 5,043.39 : x
  2. Step 2: Convert to fraction form
    8,820.06/12,171.06 = 5,043.39/x
  3. Step 3: Cross multiply
    8,820.06x = 12,171.06 × 5,043.39
  4. Step 4: Simplify right side
    8,820.06x = 61,383,402.29
  5. Step 5: Solve for x
    x = 61,383,402.29/8,820.06
  6. Step 6: Final answer
    x = 6,959.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.