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Finding the Fourth Proportional to 11,472.81, 17,208.51 and 6,822.41

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Solution

The fourth proportional to 11,472.81, 17,208.51 and 6,822.41 is: 10,233.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,472.81 : 17,208.51 = 6,822.41 : x
  2. Step 2: Convert to fraction form
    11,472.81/17,208.51 = 6,822.41/x
  3. Step 3: Cross multiply
    11,472.81x = 17,208.51 × 6,822.41
  4. Step 4: Simplify right side
    11,472.81x = 117,403,553.73
  5. Step 5: Solve for x
    x = 117,403,553.73/11,472.81
  6. Step 6: Final answer
    x = 10,233.20

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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.