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Finding the Fourth Proportional to 49,239.87, 73,859.93 and 19,660.11

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Solution

The fourth proportional to 49,239.87, 73,859.93 and 19,660.11 is: 29,490.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,239.87 : 73,859.93 = 19,660.11 : x
  2. Step 2: Convert to fraction form
    49,239.87/73,859.93 = 19,660.11/x
  3. Step 3: Cross multiply
    49,239.87x = 73,859.93 × 19,660.11
  4. Step 4: Simplify right side
    49,239.87x = 1,452,094,250.09
  5. Step 5: Solve for x
    x = 1,452,094,250.09/49,239.87
  6. Step 6: Final answer
    x = 29,490.21

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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.