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Finding the Fourth Proportional to 66,361.20, 99,570.60 and 33,529.20

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Solution

The fourth proportional to 66,361.20, 99,570.60 and 33,529.20 is: 50,308.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,361.20 : 99,570.60 = 33,529.20 : x
  2. Step 2: Convert to fraction form
    66,361.20/99,570.60 = 33,529.20/x
  3. Step 3: Cross multiply
    66,361.20x = 99,570.60 × 33,529.20
  4. Step 4: Simplify right side
    66,361.20x = 3,338,522,561.52
  5. Step 5: Solve for x
    x = 3,338,522,561.52/66,361.20
  6. Step 6: Final answer
    x = 50,308.35

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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.