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Finding the Fourth Proportional to 48,695.54, 73,076.12 and 19,109.89

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Solution

The fourth proportional to 48,695.54, 73,076.12 and 19,109.89 is: 28,677.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,695.54 : 73,076.12 = 19,109.89 : x
  2. Step 2: Convert to fraction form
    48,695.54/73,076.12 = 19,109.89/x
  3. Step 3: Cross multiply
    48,695.54x = 73,076.12 × 19,109.89
  4. Step 4: Simplify right side
    48,695.54x = 1,396,476,153.90
  5. Step 5: Solve for x
    x = 1,396,476,153.90/48,695.54
  6. Step 6: Final answer
    x = 28,677.70

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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.