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Finding the Fourth Proportional to 66,476.69, 91,736.16 and 36,262.70

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Solution

The fourth proportional to 66,476.69, 91,736.16 and 36,262.70 is: 50,041.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,476.69 : 91,736.16 = 36,262.70 : x
  2. Step 2: Convert to fraction form
    66,476.69/91,736.16 = 36,262.70/x
  3. Step 3: Cross multiply
    66,476.69x = 91,736.16 × 36,262.70
  4. Step 4: Simplify right side
    66,476.69x = 3,326,600,849.23
  5. Step 5: Solve for x
    x = 3,326,600,849.23/66,476.69
  6. Step 6: Final answer
    x = 50,041.61

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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.