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Finding the Fourth Proportional to 6,992.80, 9,651.18 and 5,110.56

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Solution

The fourth proportional to 6,992.80, 9,651.18 and 5,110.56 is: 7,053.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,992.80 : 9,651.18 = 5,110.56 : x
  2. Step 2: Convert to fraction form
    6,992.80/9,651.18 = 5,110.56/x
  3. Step 3: Cross multiply
    6,992.80x = 9,651.18 × 5,110.56
  4. Step 4: Simplify right side
    6,992.80x = 49,322,934.46
  5. Step 5: Solve for x
    x = 49,322,934.46/6,992.80
  6. Step 6: Final answer
    x = 7,053.39

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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.