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Finding the Fourth Proportional to 20,230.72, 30,292.91 and 16,260.91

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Solution

The fourth proportional to 20,230.72, 30,292.91 and 16,260.91 is: 24,348.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.72 : 30,292.91 = 16,260.91 : x
  2. Step 2: Convert to fraction form
    20,230.72/30,292.91 = 16,260.91/x
  3. Step 3: Cross multiply
    20,230.72x = 30,292.91 × 16,260.91
  4. Step 4: Simplify right side
    20,230.72x = 492,590,050.38
  5. Step 5: Solve for x
    x = 492,590,050.38/20,230.72
  6. Step 6: Final answer
    x = 24,348.62

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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.