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Finding the Fourth Proportional to 12,553.66, 17,323.87 and 6,811.03

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Solution

The fourth proportional to 12,553.66, 17,323.87 and 6,811.03 is: 9,399.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.66 : 17,323.87 = 6,811.03 : x
  2. Step 2: Convert to fraction form
    12,553.66/17,323.87 = 6,811.03/x
  3. Step 3: Cross multiply
    12,553.66x = 17,323.87 × 6,811.03
  4. Step 4: Simplify right side
    12,553.66x = 117,993,398.29
  5. Step 5: Solve for x
    x = 117,993,398.29/12,553.66
  6. Step 6: Final answer
    x = 9,399.12

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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.