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Finding the Fourth Proportional to 30,230.84, 41,713.58 and 16,801.72

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Solution

The fourth proportional to 30,230.84, 41,713.58 and 16,801.72 is: 23,183.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,230.84 : 41,713.58 = 16,801.72 : x
  2. Step 2: Convert to fraction form
    30,230.84/41,713.58 = 16,801.72/x
  3. Step 3: Cross multiply
    30,230.84x = 41,713.58 × 16,801.72
  4. Step 4: Simplify right side
    30,230.84x = 700,859,891.36
  5. Step 5: Solve for x
    x = 700,859,891.36/30,230.84
  6. Step 6: Final answer
    x = 23,183.61

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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.