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Finding the Fourth Proportional to 40,647.44, 60,977.03 and 12,569.81

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Solution

The fourth proportional to 40,647.44, 60,977.03 and 12,569.81 is: 18,856.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,647.44 : 60,977.03 = 12,569.81 : x
  2. Step 2: Convert to fraction form
    40,647.44/60,977.03 = 12,569.81/x
  3. Step 3: Cross multiply
    40,647.44x = 60,977.03 × 12,569.81
  4. Step 4: Simplify right side
    40,647.44x = 766,469,313.73
  5. Step 5: Solve for x
    x = 766,469,313.73/40,647.44
  6. Step 6: Final answer
    x = 18,856.52

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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.