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Finding the Fourth Proportional to 66,490.26, 99,736.26 and 22,117.02

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Solution

The fourth proportional to 66,490.26, 99,736.26 and 22,117.02 is: 33,175.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,490.26 : 99,736.26 = 22,117.02 : x
  2. Step 2: Convert to fraction form
    66,490.26/99,736.26 = 22,117.02/x
  3. Step 3: Cross multiply
    66,490.26x = 99,736.26 × 22,117.02
  4. Step 4: Simplify right side
    66,490.26x = 2,205,868,857.15
  5. Step 5: Solve for x
    x = 2,205,868,857.15/66,490.26
  6. Step 6: Final answer
    x = 33,175.82

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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.