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Finding the Fourth Proportional to 39,967.74, 59,986.17 and 15,361.02

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Solution

The fourth proportional to 39,967.74, 59,986.17 and 15,361.02 is: 23,054.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,967.74 : 59,986.17 = 15,361.02 : x
  2. Step 2: Convert to fraction form
    39,967.74/59,986.17 = 15,361.02/x
  3. Step 3: Cross multiply
    39,967.74x = 59,986.17 × 15,361.02
  4. Step 4: Simplify right side
    39,967.74x = 921,448,757.09
  5. Step 5: Solve for x
    x = 921,448,757.09/39,967.74
  6. Step 6: Final answer
    x = 23,054.81

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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.