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Finding the Fourth Proportional to 22,387.88, 33,581.81 and 8,536.88

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Solution

The fourth proportional to 22,387.88, 33,581.81 and 8,536.88 is: 12,805.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,387.88 : 33,581.81 = 8,536.88 : x
  2. Step 2: Convert to fraction form
    22,387.88/33,581.81 = 8,536.88/x
  3. Step 3: Cross multiply
    22,387.88x = 33,581.81 × 8,536.88
  4. Step 4: Simplify right side
    22,387.88x = 286,683,735.59
  5. Step 5: Solve for x
    x = 286,683,735.59/22,387.88
  6. Step 6: Final answer
    x = 12,805.31

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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.