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Finding the Fourth Proportional to 66,282.44, 91,472.97 and 37,988.19

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Solution

The fourth proportional to 66,282.44, 91,472.97 and 37,988.19 is: 52,425.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,282.44 : 91,472.97 = 37,988.19 : x
  2. Step 2: Convert to fraction form
    66,282.44/91,472.97 = 37,988.19/x
  3. Step 3: Cross multiply
    66,282.44x = 91,472.97 × 37,988.19
  4. Step 4: Simplify right side
    66,282.44x = 3,474,892,564.22
  5. Step 5: Solve for x
    x = 3,474,892,564.22/66,282.44
  6. Step 6: Final answer
    x = 52,425.54

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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.