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Finding the Fourth Proportional to 60,695.60, 91,027.20 and 18,575.60

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Solution

The fourth proportional to 60,695.60, 91,027.20 and 18,575.60 is: 27,858.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,695.60 : 91,027.20 = 18,575.60 : x
  2. Step 2: Convert to fraction form
    60,695.60/91,027.20 = 18,575.60/x
  3. Step 3: Cross multiply
    60,695.60x = 91,027.20 × 18,575.60
  4. Step 4: Simplify right side
    60,695.60x = 1,690,884,856.32
  5. Step 5: Solve for x
    x = 1,690,884,856.32/60,695.60
  6. Step 6: Final answer
    x = 27,858.44

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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.