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Finding the Fourth Proportional to 66,958.80, 92,398.98 and 36,738

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Solution

The fourth proportional to 66,958.80, 92,398.98 and 36,738 is: 50,696.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,958.80 : 92,398.98 = 36,738 : x
  2. Step 2: Convert to fraction form
    66,958.80/92,398.98 = 36,738/x
  3. Step 3: Cross multiply
    66,958.80x = 92,398.98 × 36,738
  4. Step 4: Simplify right side
    66,958.80x = 3,394,553,727.24
  5. Step 5: Solve for x
    x = 3,394,553,727.24/66,958.80
  6. Step 6: Final answer
    x = 50,696.16

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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.