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Finding the Fourth Proportional to 24,986, 37,479 and 15,136.40

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Solution

The fourth proportional to 24,986, 37,479 and 15,136.40 is: 22,704.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,986 : 37,479 = 15,136.40 : x
  2. Step 2: Convert to fraction form
    24,986/37,479 = 15,136.40/x
  3. Step 3: Cross multiply
    24,986x = 37,479 × 15,136.40
  4. Step 4: Simplify right side
    24,986x = 567,297,135.60
  5. Step 5: Solve for x
    x = 567,297,135.60/24,986
  6. Step 6: Final answer
    x = 22,704.60

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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.