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Finding the Fourth Proportional to 66,175.57, 91,321.98 and 35,960.32

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Solution

The fourth proportional to 66,175.57, 91,321.98 and 35,960.32 is: 49,625.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,175.57 : 91,321.98 = 35,960.32 : x
  2. Step 2: Convert to fraction form
    66,175.57/91,321.98 = 35,960.32/x
  3. Step 3: Cross multiply
    66,175.57x = 91,321.98 × 35,960.32
  4. Step 4: Simplify right side
    66,175.57x = 3,283,967,167.22
  5. Step 5: Solve for x
    x = 3,283,967,167.22/66,175.57
  6. Step 6: Final answer
    x = 49,625.07

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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.