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Finding the Fourth Proportional to 48,508.38, 72,796.08 and 16,918.74

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Solution

The fourth proportional to 48,508.38, 72,796.08 and 16,918.74 is: 25,389.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,508.38 : 72,796.08 = 16,918.74 : x
  2. Step 2: Convert to fraction form
    48,508.38/72,796.08 = 16,918.74/x
  3. Step 3: Cross multiply
    48,508.38x = 72,796.08 × 16,918.74
  4. Step 4: Simplify right side
    48,508.38x = 1,231,617,950.54
  5. Step 5: Solve for x
    x = 1,231,617,950.54/48,508.38
  6. Step 6: Final answer
    x = 25,389.80

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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.