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Finding the Fourth Proportional to 16,513.68, 22,789.99 and 9,343.58

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Solution

The fourth proportional to 16,513.68, 22,789.99 and 9,343.58 is: 12,894.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,513.68 : 22,789.99 = 9,343.58 : x
  2. Step 2: Convert to fraction form
    16,513.68/22,789.99 = 9,343.58/x
  3. Step 3: Cross multiply
    16,513.68x = 22,789.99 × 9,343.58
  4. Step 4: Simplify right side
    16,513.68x = 212,940,048.05
  5. Step 5: Solve for x
    x = 212,940,048.05/16,513.68
  6. Step 6: Final answer
    x = 12,894.77

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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.