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Finding the Fourth Proportional to 9,995.92, 13,793.16 and 5,519.32

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Solution

The fourth proportional to 9,995.92, 13,793.16 and 5,519.32 is: 7,615.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,995.92 : 13,793.16 = 5,519.32 : x
  2. Step 2: Convert to fraction form
    9,995.92/13,793.16 = 5,519.32/x
  3. Step 3: Cross multiply
    9,995.92x = 13,793.16 × 5,519.32
  4. Step 4: Simplify right side
    9,995.92x = 76,128,863.85
  5. Step 5: Solve for x
    x = 76,128,863.85/9,995.92
  6. Step 6: Final answer
    x = 7,615.99

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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.