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Finding the Fourth Proportional to 66,607.80, 99,916.77 and 22,234.44

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Solution

The fourth proportional to 66,607.80, 99,916.77 and 22,234.44 is: 33,353.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,607.80 : 99,916.77 = 22,234.44 : x
  2. Step 2: Convert to fraction form
    66,607.80/99,916.77 = 22,234.44/x
  3. Step 3: Cross multiply
    66,607.80x = 99,916.77 × 22,234.44
  4. Step 4: Simplify right side
    66,607.80x = 2,221,593,427.56
  5. Step 5: Solve for x
    x = 2,221,593,427.56/66,607.80
  6. Step 6: Final answer
    x = 33,353.35

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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.