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Finding the Fourth Proportional to 66,993.03, 100,504.13 and 22,617.90

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Solution

The fourth proportional to 66,993.03, 100,504.13 and 22,617.90 is: 33,931.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,993.03 : 100,504.13 = 22,617.90 : x
  2. Step 2: Convert to fraction form
    66,993.03/100,504.13 = 22,617.90/x
  3. Step 3: Cross multiply
    66,993.03x = 100,504.13 × 22,617.90
  4. Step 4: Simplify right side
    66,993.03x = 2,273,192,248.84
  5. Step 5: Solve for x
    x = 2,273,192,248.84/66,993.03
  6. Step 6: Final answer
    x = 33,931.77

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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.