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Finding the Fourth Proportional to 66,575.88, 91,874.21 and 36,361.22

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Solution

The fourth proportional to 66,575.88, 91,874.21 and 36,361.22 is: 50,178.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,575.88 : 91,874.21 = 36,361.22 : x
  2. Step 2: Convert to fraction form
    66,575.88/91,874.21 = 36,361.22/x
  3. Step 3: Cross multiply
    66,575.88x = 91,874.21 × 36,361.22
  4. Step 4: Simplify right side
    66,575.88x = 3,340,657,993.67
  5. Step 5: Solve for x
    x = 3,340,657,993.67/66,575.88
  6. Step 6: Final answer
    x = 50,178.20

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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.