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Finding the Fourth Proportional to 43,188.84, 64,817.82 and 22,418.28

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Solution

The fourth proportional to 43,188.84, 64,817.82 and 22,418.28 is: 33,645.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,188.84 : 64,817.82 = 22,418.28 : x
  2. Step 2: Convert to fraction form
    43,188.84/64,817.82 = 22,418.28/x
  3. Step 3: Cross multiply
    43,188.84x = 64,817.82 × 22,418.28
  4. Step 4: Simplify right side
    43,188.84x = 1,453,104,037.75
  5. Step 5: Solve for x
    x = 1,453,104,037.75/43,188.84
  6. Step 6: Final answer
    x = 33,645.36

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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.