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Finding the Fourth Proportional to 5,553.99, 7,664.49 and 3,196.13

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Solution

The fourth proportional to 5,553.99, 7,664.49 and 3,196.13 is: 4,410.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,553.99 : 7,664.49 = 3,196.13 : x
  2. Step 2: Convert to fraction form
    5,553.99/7,664.49 = 3,196.13/x
  3. Step 3: Cross multiply
    5,553.99x = 7,664.49 × 3,196.13
  4. Step 4: Simplify right side
    5,553.99x = 24,496,668.10
  5. Step 5: Solve for x
    x = 24,496,668.10/5,553.99
  6. Step 6: Final answer
    x = 4,410.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.