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Finding the Fourth Proportional to 22,572.36, 33,867.45 and 6,991.20

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Solution

The fourth proportional to 22,572.36, 33,867.45 and 6,991.20 is: 10,489.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,572.36 : 33,867.45 = 6,991.20 : x
  2. Step 2: Convert to fraction form
    22,572.36/33,867.45 = 6,991.20/x
  3. Step 3: Cross multiply
    22,572.36x = 33,867.45 × 6,991.20
  4. Step 4: Simplify right side
    22,572.36x = 236,774,116.44
  5. Step 5: Solve for x
    x = 236,774,116.44/22,572.36
  6. Step 6: Final answer
    x = 10,489.56

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.