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Finding the Fourth Proportional to 66,576.21, 91,863 and 37,894.17

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Solution

The fourth proportional to 66,576.21, 91,863 and 37,894.17 is: 52,287.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,576.21 : 91,863 = 37,894.17 : x
  2. Step 2: Convert to fraction form
    66,576.21/91,863 = 37,894.17/x
  3. Step 3: Cross multiply
    66,576.21x = 91,863 × 37,894.17
  4. Step 4: Simplify right side
    66,576.21x = 3,481,072,138.71
  5. Step 5: Solve for x
    x = 3,481,072,138.71/66,576.21
  6. Step 6: Final answer
    x = 52,287.03

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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.