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Finding the Fourth Proportional to 66,574.14, 91,872.92 and 37,892.38

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Solution

The fourth proportional to 66,574.14, 91,872.92 and 37,892.38 is: 52,291.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,574.14 : 91,872.92 = 37,892.38 : x
  2. Step 2: Convert to fraction form
    66,574.14/91,872.92 = 37,892.38/x
  3. Step 3: Cross multiply
    66,574.14x = 91,872.92 × 37,892.38
  4. Step 4: Simplify right side
    66,574.14x = 3,481,283,596.35
  5. Step 5: Solve for x
    x = 3,481,283,596.35/66,574.14
  6. Step 6: Final answer
    x = 52,291.83

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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.