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Finding the Fourth Proportional to 66,513.83, 91,791.03 and 36,301.09

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Solution

The fourth proportional to 66,513.83, 91,791.03 and 36,301.09 is: 50,096.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,513.83 : 91,791.03 = 36,301.09 : x
  2. Step 2: Convert to fraction form
    66,513.83/91,791.03 = 36,301.09/x
  3. Step 3: Cross multiply
    66,513.83x = 91,791.03 × 36,301.09
  4. Step 4: Simplify right side
    66,513.83x = 3,332,114,486.60
  5. Step 5: Solve for x
    x = 3,332,114,486.60/66,513.83
  6. Step 6: Final answer
    x = 50,096.57

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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.