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Finding the Fourth Proportional to 55,516, 83,267.88 and 13,963

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Solution

The fourth proportional to 55,516, 83,267.88 and 13,963 is: 20,942.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,516 : 83,267.88 = 13,963 : x
  2. Step 2: Convert to fraction form
    55,516/83,267.88 = 13,963/x
  3. Step 3: Cross multiply
    55,516x = 83,267.88 × 13,963
  4. Step 4: Simplify right side
    55,516x = 1,162,669,408.44
  5. Step 5: Solve for x
    x = 1,162,669,408.44/55,516
  6. Step 6: Final answer
    x = 20,942.96

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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.