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Finding the Fourth Proportional to 64,917, 89,585.46 and 35,109

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Solution

The fourth proportional to 64,917, 89,585.46 and 35,109 is: 48,450.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,917 : 89,585.46 = 35,109 : x
  2. Step 2: Convert to fraction form
    64,917/89,585.46 = 35,109/x
  3. Step 3: Cross multiply
    64,917x = 89,585.46 × 35,109
  4. Step 4: Simplify right side
    64,917x = 3,145,255,915.14
  5. Step 5: Solve for x
    x = 3,145,255,915.14/64,917
  6. Step 6: Final answer
    x = 48,450.42

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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.