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Finding the Fourth Proportional to 45,881.56, 68,824.32 and 12,600.82

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Solution

The fourth proportional to 45,881.56, 68,824.32 and 12,600.82 is: 18,901.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,881.56 : 68,824.32 = 12,600.82 : x
  2. Step 2: Convert to fraction form
    45,881.56/68,824.32 = 12,600.82/x
  3. Step 3: Cross multiply
    45,881.56x = 68,824.32 × 12,600.82
  4. Step 4: Simplify right side
    45,881.56x = 867,242,867.94
  5. Step 5: Solve for x
    x = 867,242,867.94/45,881.56
  6. Step 6: Final answer
    x = 18,901.77

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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.