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Finding the Fourth Proportional to 57,528.40, 86,257.40 and 22,427.60

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Solution

The fourth proportional to 57,528.40, 86,257.40 and 22,427.60 is: 33,627.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,528.40 : 86,257.40 = 22,427.60 : x
  2. Step 2: Convert to fraction form
    57,528.40/86,257.40 = 22,427.60/x
  3. Step 3: Cross multiply
    57,528.40x = 86,257.40 × 22,427.60
  4. Step 4: Simplify right side
    57,528.40x = 1,934,546,464.24
  5. Step 5: Solve for x
    x = 1,934,546,464.24/57,528.40
  6. Step 6: Final answer
    x = 33,627.68

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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.