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Finding the Fourth Proportional to 45,894.96, 68,829.21 and 12,616.11

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Solution

The fourth proportional to 45,894.96, 68,829.21 and 12,616.11 is: 18,920.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,894.96 : 68,829.21 = 12,616.11 : x
  2. Step 2: Convert to fraction form
    45,894.96/68,829.21 = 12,616.11/x
  3. Step 3: Cross multiply
    45,894.96x = 68,829.21 × 12,616.11
  4. Step 4: Simplify right side
    45,894.96x = 868,356,884.57
  5. Step 5: Solve for x
    x = 868,356,884.57/45,894.96
  6. Step 6: Final answer
    x = 18,920.53

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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.