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Finding the Fourth Proportional to 3,309.92, 4,566.92 and 1,983.86

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Solution

The fourth proportional to 3,309.92, 4,566.92 and 1,983.86 is: 2,737.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,309.92 : 4,566.92 = 1,983.86 : x
  2. Step 2: Convert to fraction form
    3,309.92/4,566.92 = 1,983.86/x
  3. Step 3: Cross multiply
    3,309.92x = 4,566.92 × 1,983.86
  4. Step 4: Simplify right side
    3,309.92x = 9,060,129.91
  5. Step 5: Solve for x
    x = 9,060,129.91/3,309.92
  6. Step 6: Final answer
    x = 2,737.27

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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.