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Finding the Fourth Proportional to 66,270.77, 91,452.65 and 36,055.40

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Solution

The fourth proportional to 66,270.77, 91,452.65 and 36,055.40 is: 49,755.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,270.77 : 91,452.65 = 36,055.40 : x
  2. Step 2: Convert to fraction form
    66,270.77/91,452.65 = 36,055.40/x
  3. Step 3: Cross multiply
    66,270.77x = 91,452.65 × 36,055.40
  4. Step 4: Simplify right side
    66,270.77x = 3,297,361,239.27
  5. Step 5: Solve for x
    x = 3,297,361,239.27/66,270.77
  6. Step 6: Final answer
    x = 49,755.90

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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.