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Finding the Fourth Proportional to 66,476.39, 91,738.47 and 36,261.69

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Solution

The fourth proportional to 66,476.39, 91,738.47 and 36,261.69 is: 50,041.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,476.39 : 91,738.47 = 36,261.69 : x
  2. Step 2: Convert to fraction form
    66,476.39/91,738.47 = 36,261.69/x
  3. Step 3: Cross multiply
    66,476.39x = 91,738.47 × 36,261.69
  4. Step 4: Simplify right side
    66,476.39x = 3,326,591,960.21
  5. Step 5: Solve for x
    x = 3,326,591,960.21/66,476.39
  6. Step 6: Final answer
    x = 50,041.71

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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.