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Finding the Fourth Proportional to 16,992.54, 23,451.18 and 9,921.24

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Solution

The fourth proportional to 16,992.54, 23,451.18 and 9,921.24 is: 13,692.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,992.54 : 23,451.18 = 9,921.24 : x
  2. Step 2: Convert to fraction form
    16,992.54/23,451.18 = 9,921.24/x
  3. Step 3: Cross multiply
    16,992.54x = 23,451.18 × 9,921.24
  4. Step 4: Simplify right side
    16,992.54x = 232,664,785.06
  5. Step 5: Solve for x
    x = 232,664,785.06/16,992.54
  6. Step 6: Final answer
    x = 13,692.17

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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.