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Finding the Fourth Proportional to 62,135.76, 85,755.81 and 36,649.32

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Solution

The fourth proportional to 62,135.76, 85,755.81 and 36,649.32 is: 50,581.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,135.76 : 85,755.81 = 36,649.32 : x
  2. Step 2: Convert to fraction form
    62,135.76/85,755.81 = 36,649.32/x
  3. Step 3: Cross multiply
    62,135.76x = 85,755.81 × 36,649.32
  4. Step 4: Simplify right side
    62,135.76x = 3,142,892,122.55
  5. Step 5: Solve for x
    x = 3,142,892,122.55/62,135.76
  6. Step 6: Final answer
    x = 50,581.05

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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.