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Finding the Fourth Proportional to 15,136.80, 22,697.10 and 6,361.80

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Solution

The fourth proportional to 15,136.80, 22,697.10 and 6,361.80 is: 9,539.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,136.80 : 22,697.10 = 6,361.80 : x
  2. Step 2: Convert to fraction form
    15,136.80/22,697.10 = 6,361.80/x
  3. Step 3: Cross multiply
    15,136.80x = 22,697.10 × 6,361.80
  4. Step 4: Simplify right side
    15,136.80x = 144,394,410.78
  5. Step 5: Solve for x
    x = 144,394,410.78/15,136.80
  6. Step 6: Final answer
    x = 9,539.30

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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.