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Finding the Fourth Proportional to 5,648.98, 8,468.85 and 2,136.99

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Solution

The fourth proportional to 5,648.98, 8,468.85 and 2,136.99 is: 3,203.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,648.98 : 8,468.85 = 2,136.99 : x
  2. Step 2: Convert to fraction form
    5,648.98/8,468.85 = 2,136.99/x
  3. Step 3: Cross multiply
    5,648.98x = 8,468.85 × 2,136.99
  4. Step 4: Simplify right side
    5,648.98x = 18,097,847.76
  5. Step 5: Solve for x
    x = 18,097,847.76/5,648.98
  6. Step 6: Final answer
    x = 3,203.74

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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.