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Finding the Fourth Proportional to 49,479, 68,285.34 and 27,127.32

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Solution

The fourth proportional to 49,479, 68,285.34 and 27,127.32 is: 37,438.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,479 : 68,285.34 = 27,127.32 : x
  2. Step 2: Convert to fraction form
    49,479/68,285.34 = 27,127.32/x
  3. Step 3: Cross multiply
    49,479x = 68,285.34 × 27,127.32
  4. Step 4: Simplify right side
    49,479x = 1,852,398,269.49
  5. Step 5: Solve for x
    x = 1,852,398,269.49/49,479
  6. Step 6: Final answer
    x = 37,438.07

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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.