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Finding the Fourth Proportional to 66,188.70, 91,340.01 and 35,974.26

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Solution

The fourth proportional to 66,188.70, 91,340.01 and 35,974.26 is: 49,644.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,188.70 : 91,340.01 = 35,974.26 : x
  2. Step 2: Convert to fraction form
    66,188.70/91,340.01 = 35,974.26/x
  3. Step 3: Cross multiply
    66,188.70x = 91,340.01 × 35,974.26
  4. Step 4: Simplify right side
    66,188.70x = 3,285,889,268.14
  5. Step 5: Solve for x
    x = 3,285,889,268.14/66,188.70
  6. Step 6: Final answer
    x = 49,644.26

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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.