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Finding the Fourth Proportional to 66,207.32, 91,367.90 and 35,994.68

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Solution

The fourth proportional to 66,207.32, 91,367.90 and 35,994.68 is: 49,673.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,207.32 : 91,367.90 = 35,994.68 : x
  2. Step 2: Convert to fraction form
    66,207.32/91,367.90 = 35,994.68/x
  3. Step 3: Cross multiply
    66,207.32x = 91,367.90 × 35,994.68
  4. Step 4: Simplify right side
    66,207.32x = 3,288,758,163.57
  5. Step 5: Solve for x
    x = 3,288,758,163.57/66,207.32
  6. Step 6: Final answer
    x = 49,673.63

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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.