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Finding the Fourth Proportional to 66,552.04, 99,821.22 and 22,174

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Solution

The fourth proportional to 66,552.04, 99,821.22 and 22,174 is: 33,258.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,552.04 : 99,821.22 = 22,174 : x
  2. Step 2: Convert to fraction form
    66,552.04/99,821.22 = 22,174/x
  3. Step 3: Cross multiply
    66,552.04x = 99,821.22 × 22,174
  4. Step 4: Simplify right side
    66,552.04x = 2,213,435,732.28
  5. Step 5: Solve for x
    x = 2,213,435,732.28/66,552.04
  6. Step 6: Final answer
    x = 33,258.72

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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.