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Finding the Fourth Proportional to 60,941.70, 84,135.87 and 38,299.86

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Solution

The fourth proportional to 60,941.70, 84,135.87 and 38,299.86 is: 52,876.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,941.70 : 84,135.87 = 38,299.86 : x
  2. Step 2: Convert to fraction form
    60,941.70/84,135.87 = 38,299.86/x
  3. Step 3: Cross multiply
    60,941.70x = 84,135.87 × 38,299.86
  4. Step 4: Simplify right side
    60,941.70x = 3,222,392,041.98
  5. Step 5: Solve for x
    x = 3,222,392,041.98/60,941.70
  6. Step 6: Final answer
    x = 52,876.64

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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.