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Finding the Fourth Proportional to 66,496.95, 91,764.09 and 38,202.03

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Solution

The fourth proportional to 66,496.95, 91,764.09 and 38,202.03 is: 52,717.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,496.95 : 91,764.09 = 38,202.03 : x
  2. Step 2: Convert to fraction form
    66,496.95/91,764.09 = 38,202.03/x
  3. Step 3: Cross multiply
    66,496.95x = 91,764.09 × 38,202.03
  4. Step 4: Simplify right side
    66,496.95x = 3,505,574,519.10
  5. Step 5: Solve for x
    x = 3,505,574,519.10/66,496.95
  6. Step 6: Final answer
    x = 52,717.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.