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Finding the Fourth Proportional to 66,958.53, 100,476.74 and 30,022.53

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Solution

The fourth proportional to 66,958.53, 100,476.74 and 30,022.53 is: 45,051.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,958.53 : 100,476.74 = 30,022.53 : x
  2. Step 2: Convert to fraction form
    66,958.53/100,476.74 = 30,022.53/x
  3. Step 3: Cross multiply
    66,958.53x = 100,476.74 × 30,022.53
  4. Step 4: Simplify right side
    66,958.53x = 3,016,565,790.84
  5. Step 5: Solve for x
    x = 3,016,565,790.84/66,958.53
  6. Step 6: Final answer
    x = 45,051.25

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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.