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Finding the Fourth Proportional to 60,874.70, 91,264.26 and 38,683.94

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Solution

The fourth proportional to 60,874.70, 91,264.26 and 38,683.94 is: 57,995.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,874.70 : 91,264.26 = 38,683.94 : x
  2. Step 2: Convert to fraction form
    60,874.70/91,264.26 = 38,683.94/x
  3. Step 3: Cross multiply
    60,874.70x = 91,264.26 × 38,683.94
  4. Step 4: Simplify right side
    60,874.70x = 3,530,461,157.98
  5. Step 5: Solve for x
    x = 3,530,461,157.98/60,874.70
  6. Step 6: Final answer
    x = 57,995.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.