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Finding the Fourth Proportional to 22,718.42, 34,078.98 and 7,136.04

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Solution

The fourth proportional to 22,718.42, 34,078.98 and 7,136.04 is: 10,704.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,718.42 : 34,078.98 = 7,136.04 : x
  2. Step 2: Convert to fraction form
    22,718.42/34,078.98 = 7,136.04/x
  3. Step 3: Cross multiply
    22,718.42x = 34,078.98 × 7,136.04
  4. Step 4: Simplify right side
    22,718.42x = 243,188,964.44
  5. Step 5: Solve for x
    x = 243,188,964.44/22,718.42
  6. Step 6: Final answer
    x = 10,704.49

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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.