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Finding the Fourth Proportional to 64,845, 89,486.22 and 35,037

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Solution

The fourth proportional to 64,845, 89,486.22 and 35,037 is: 48,351.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,845 : 89,486.22 = 35,037 : x
  2. Step 2: Convert to fraction form
    64,845/89,486.22 = 35,037/x
  3. Step 3: Cross multiply
    64,845x = 89,486.22 × 35,037
  4. Step 4: Simplify right side
    64,845x = 3,135,328,690.14
  5. Step 5: Solve for x
    x = 3,135,328,690.14/64,845
  6. Step 6: Final answer
    x = 48,351.12

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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.