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Finding the Fourth Proportional to 64,722.31, 96,875.70 and 34,694.80

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Solution

The fourth proportional to 64,722.31, 96,875.70 and 34,694.80 is: 51,930.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,722.31 : 96,875.70 = 34,694.80 : x
  2. Step 2: Convert to fraction form
    64,722.31/96,875.70 = 34,694.80/x
  3. Step 3: Cross multiply
    64,722.31x = 96,875.70 × 34,694.80
  4. Step 4: Simplify right side
    64,722.31x = 3,361,083,036.36
  5. Step 5: Solve for x
    x = 3,361,083,036.36/64,722.31
  6. Step 6: Final answer
    x = 51,930.83

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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.