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Finding the Fourth Proportional to 6,992.46, 9,646.56 and 4,007.61

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Solution

The fourth proportional to 6,992.46, 9,646.56 and 4,007.61 is: 5,528.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,992.46 : 9,646.56 = 4,007.61 : x
  2. Step 2: Convert to fraction form
    6,992.46/9,646.56 = 4,007.61/x
  3. Step 3: Cross multiply
    6,992.46x = 9,646.56 × 4,007.61
  4. Step 4: Simplify right side
    6,992.46x = 38,659,650.32
  5. Step 5: Solve for x
    x = 38,659,650.32/6,992.46
  6. Step 6: Final answer
    x = 5,528.76

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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.