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Finding the Fourth Proportional to 39,900.56, 59,918.64 and 26,658.65

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Solution

The fourth proportional to 39,900.56, 59,918.64 and 26,658.65 is: 40,033.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,900.56 : 59,918.64 = 26,658.65 : x
  2. Step 2: Convert to fraction form
    39,900.56/59,918.64 = 26,658.65/x
  3. Step 3: Cross multiply
    39,900.56x = 59,918.64 × 26,658.65
  4. Step 4: Simplify right side
    39,900.56x = 1,597,350,202.03
  5. Step 5: Solve for x
    x = 1,597,350,202.03/39,900.56
  6. Step 6: Final answer
    x = 40,033.28

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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.