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Finding the Fourth Proportional to 66,727, 92,083.26 and 36,919

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Solution

The fourth proportional to 66,727, 92,083.26 and 36,919 is: 50,948.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,727 : 92,083.26 = 36,919 : x
  2. Step 2: Convert to fraction form
    66,727/92,083.26 = 36,919/x
  3. Step 3: Cross multiply
    66,727x = 92,083.26 × 36,919
  4. Step 4: Simplify right side
    66,727x = 3,399,621,875.94
  5. Step 5: Solve for x
    x = 3,399,621,875.94/66,727
  6. Step 6: Final answer
    x = 50,948.22

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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.