Home / 66,486.29-91,751.07-38,191.97

Finding the Fourth Proportional to 66,486.29, 91,751.07 and 38,191.97

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Solution

The fourth proportional to 66,486.29, 91,751.07 and 38,191.97 is: 52,704.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,486.29 : 91,751.07 = 38,191.97 : x
  2. Step 2: Convert to fraction form
    66,486.29/91,751.07 = 38,191.97/x
  3. Step 3: Cross multiply
    66,486.29x = 91,751.07 × 38,191.97
  4. Step 4: Simplify right side
    66,486.29x = 3,504,153,654.15
  5. Step 5: Solve for x
    x = 3,504,153,654.15/66,486.29
  6. Step 6: Final answer
    x = 52,704.91

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1.5x scale

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.