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Finding the Fourth Proportional to 66,562.94, 99,818.97 and 22,181.18

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Solution

The fourth proportional to 66,562.94, 99,818.97 and 22,181.18 is: 33,263.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,562.94 : 99,818.97 = 22,181.18 : x
  2. Step 2: Convert to fraction form
    66,562.94/99,818.97 = 22,181.18/x
  3. Step 3: Cross multiply
    66,562.94x = 99,818.97 × 22,181.18
  4. Step 4: Simplify right side
    66,562.94x = 2,214,102,540.98
  5. Step 5: Solve for x
    x = 2,214,102,540.98/66,562.94
  6. Step 6: Final answer
    x = 33,263.29

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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.