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Finding the Fourth Proportional to 55,019.60, 82,524.60 and 18,083.60

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Solution

The fourth proportional to 55,019.60, 82,524.60 and 18,083.60 is: 27,123.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,019.60 : 82,524.60 = 18,083.60 : x
  2. Step 2: Convert to fraction form
    55,019.60/82,524.60 = 18,083.60/x
  3. Step 3: Cross multiply
    55,019.60x = 82,524.60 × 18,083.60
  4. Step 4: Simplify right side
    55,019.60x = 1,492,341,856.56
  5. Step 5: Solve for x
    x = 1,492,341,856.56/55,019.60
  6. Step 6: Final answer
    x = 27,123.82

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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.