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Finding the Fourth Proportional to 69,531.60, 104,316.80 and 22,817.28

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Solution

The fourth proportional to 69,531.60, 104,316.80 and 22,817.28 is: 34,232.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,531.60 : 104,316.80 = 22,817.28 : x
  2. Step 2: Convert to fraction form
    69,531.60/104,316.80 = 22,817.28/x
  3. Step 3: Cross multiply
    69,531.60x = 104,316.80 × 22,817.28
  4. Step 4: Simplify right side
    69,531.60x = 2,380,225,634.30
  5. Step 5: Solve for x
    x = 2,380,225,634.30/69,531.60
  6. Step 6: Final answer
    x = 34,232.29

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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.