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Finding the Fourth Proportional to 7,800.92, 11,699.07 and 2,254.32

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Solution

The fourth proportional to 7,800.92, 11,699.07 and 2,254.32 is: 3,380.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,800.92 : 11,699.07 = 2,254.32 : x
  2. Step 2: Convert to fraction form
    7,800.92/11,699.07 = 2,254.32/x
  3. Step 3: Cross multiply
    7,800.92x = 11,699.07 × 2,254.32
  4. Step 4: Simplify right side
    7,800.92x = 26,373,426.69
  5. Step 5: Solve for x
    x = 26,373,426.69/7,800.92
  6. Step 6: Final answer
    x = 3,380.81

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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.