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Finding the Fourth Proportional to 66,659.33, 91,988.83 and 36,443.94

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Solution

The fourth proportional to 66,659.33, 91,988.83 and 36,443.94 is: 50,292.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,659.33 : 91,988.83 = 36,443.94 : x
  2. Step 2: Convert to fraction form
    66,659.33/91,988.83 = 36,443.94/x
  3. Step 3: Cross multiply
    66,659.33x = 91,988.83 × 36,443.94
  4. Step 4: Simplify right side
    66,659.33x = 3,352,435,401.19
  5. Step 5: Solve for x
    x = 3,352,435,401.19/66,659.33
  6. Step 6: Final answer
    x = 50,292.07

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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.