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Finding the Fourth Proportional to 66,890.19, 100,340.75 and 33,593.13

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Solution

The fourth proportional to 66,890.19, 100,340.75 and 33,593.13 is: 50,392.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,890.19 : 100,340.75 = 33,593.13 : x
  2. Step 2: Convert to fraction form
    66,890.19/100,340.75 = 33,593.13/x
  3. Step 3: Cross multiply
    66,890.19x = 100,340.75 × 33,593.13
  4. Step 4: Simplify right side
    66,890.19x = 3,370,759,691.08
  5. Step 5: Solve for x
    x = 3,370,759,691.08/66,890.19
  6. Step 6: Final answer
    x = 50,392.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.