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Finding the Fourth Proportional to 48,202.78, 72,248.73 and 18,607.66

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Solution

The fourth proportional to 48,202.78, 72,248.73 and 18,607.66 is: 27,890.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,202.78 : 72,248.73 = 18,607.66 : x
  2. Step 2: Convert to fraction form
    48,202.78/72,248.73 = 18,607.66/x
  3. Step 3: Cross multiply
    48,202.78x = 72,248.73 × 18,607.66
  4. Step 4: Simplify right side
    48,202.78x = 1,344,379,803.27
  5. Step 5: Solve for x
    x = 1,344,379,803.27/48,202.78
  6. Step 6: Final answer
    x = 27,890.09

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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.