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Finding the Fourth Proportional to 48,813.60, 73,229.04 and 19,243.20

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Solution

The fourth proportional to 48,813.60, 73,229.04 and 19,243.20 is: 28,868.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,813.60 : 73,229.04 = 19,243.20 : x
  2. Step 2: Convert to fraction form
    48,813.60/73,229.04 = 19,243.20/x
  3. Step 3: Cross multiply
    48,813.60x = 73,229.04 × 19,243.20
  4. Step 4: Simplify right side
    48,813.60x = 1,409,161,062.53
  5. Step 5: Solve for x
    x = 1,409,161,062.53/48,813.60
  6. Step 6: Final answer
    x = 28,868.21

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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.