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Finding the Fourth Proportional to 66,414.33, 91,651.70 and 36,199.71

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Solution

The fourth proportional to 66,414.33, 91,651.70 and 36,199.71 is: 49,955.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,414.33 : 91,651.70 = 36,199.71 : x
  2. Step 2: Convert to fraction form
    66,414.33/91,651.70 = 36,199.71/x
  3. Step 3: Cross multiply
    66,414.33x = 91,651.70 × 36,199.71
  4. Step 4: Simplify right side
    66,414.33x = 3,317,765,051.51
  5. Step 5: Solve for x
    x = 3,317,765,051.51/66,414.33
  6. Step 6: Final answer
    x = 49,955.56

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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.