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Finding the Fourth Proportional to 16,992.92, 25,488.48 and 5,305.28

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Solution

The fourth proportional to 16,992.92, 25,488.48 and 5,305.28 is: 7,957.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,992.92 : 25,488.48 = 5,305.28 : x
  2. Step 2: Convert to fraction form
    16,992.92/25,488.48 = 5,305.28/x
  3. Step 3: Cross multiply
    16,992.92x = 25,488.48 × 5,305.28
  4. Step 4: Simplify right side
    16,992.92x = 135,223,523.17
  5. Step 5: Solve for x
    x = 135,223,523.17/16,992.92
  6. Step 6: Final answer
    x = 7,957.64

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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.