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Finding the Fourth Proportional to 8,179.41, 11,290.97 and 5,530.41

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Solution

The fourth proportional to 8,179.41, 11,290.97 and 5,530.41 is: 7,634.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.41 : 11,290.97 = 5,530.41 : x
  2. Step 2: Convert to fraction form
    8,179.41/11,290.97 = 5,530.41/x
  3. Step 3: Cross multiply
    8,179.41x = 11,290.97 × 5,530.41
  4. Step 4: Simplify right side
    8,179.41x = 62,443,693.40
  5. Step 5: Solve for x
    x = 62,443,693.40/8,179.41
  6. Step 6: Final answer
    x = 7,634.25

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1.5x scale

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.