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Finding the Fourth Proportional to 16,398.21, 22,629.27 and 9,324.48

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Solution

The fourth proportional to 16,398.21, 22,629.27 and 9,324.48 is: 12,867.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,398.21 : 22,629.27 = 9,324.48 : x
  2. Step 2: Convert to fraction form
    16,398.21/22,629.27 = 9,324.48/x
  3. Step 3: Cross multiply
    16,398.21x = 22,629.27 × 9,324.48
  4. Step 4: Simplify right side
    16,398.21x = 211,006,175.53
  5. Step 5: Solve for x
    x = 211,006,175.53/16,398.21
  6. Step 6: Final answer
    x = 12,867.63

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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.