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Finding the Fourth Proportional to 48,605.38, 72,908.06 and 11,669.38

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Solution

The fourth proportional to 48,605.38, 72,908.06 and 11,669.38 is: 17,504.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,605.38 : 72,908.06 = 11,669.38 : x
  2. Step 2: Convert to fraction form
    48,605.38/72,908.06 = 11,669.38/x
  3. Step 3: Cross multiply
    48,605.38x = 72,908.06 × 11,669.38
  4. Step 4: Simplify right side
    48,605.38x = 850,791,857.20
  5. Step 5: Solve for x
    x = 850,791,857.20/48,605.38
  6. Step 6: Final answer
    x = 17,504.07

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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.