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Finding the Fourth Proportional to 21,927.97, 32,892.36 and 7,136.83

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Solution

The fourth proportional to 21,927.97, 32,892.36 and 7,136.83 is: 10,705.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,927.97 : 32,892.36 = 7,136.83 : x
  2. Step 2: Convert to fraction form
    21,927.97/32,892.36 = 7,136.83/x
  3. Step 3: Cross multiply
    21,927.97x = 32,892.36 × 7,136.83
  4. Step 4: Simplify right side
    21,927.97x = 234,747,181.62
  5. Step 5: Solve for x
    x = 234,747,181.62/21,927.97
  6. Step 6: Final answer
    x = 10,705.38

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1.5x scale

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.