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Finding the Fourth Proportional to 66,249.94, 91,424.91 and 37,972.03

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Solution

The fourth proportional to 66,249.94, 91,424.91 and 37,972.03 is: 52,401.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,249.94 : 91,424.91 = 37,972.03 : x
  2. Step 2: Convert to fraction form
    66,249.94/91,424.91 = 37,972.03/x
  3. Step 3: Cross multiply
    66,249.94x = 91,424.91 × 37,972.03
  4. Step 4: Simplify right side
    66,249.94x = 3,471,589,339.10
  5. Step 5: Solve for x
    x = 3,471,589,339.10/66,249.94
  6. Step 6: Final answer
    x = 52,401.40

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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.