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Finding the Fourth Proportional to 16,371.43, 22,592.78 and 8,919.43

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Solution

The fourth proportional to 16,371.43, 22,592.78 and 8,919.43 is: 12,308.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,371.43 : 22,592.78 = 8,919.43 : x
  2. Step 2: Convert to fraction form
    16,371.43/22,592.78 = 8,919.43/x
  3. Step 3: Cross multiply
    16,371.43x = 22,592.78 × 8,919.43
  4. Step 4: Simplify right side
    16,371.43x = 201,514,719.72
  5. Step 5: Solve for x
    x = 201,514,719.72/16,371.43
  6. Step 6: Final answer
    x = 12,308.93

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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.