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Finding the Fourth Proportional to 12,793.99, 17,651.01 and 7,754.57

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Solution

The fourth proportional to 12,793.99, 17,651.01 and 7,754.57 is: 10,698.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,793.99 : 17,651.01 = 7,754.57 : x
  2. Step 2: Convert to fraction form
    12,793.99/17,651.01 = 7,754.57/x
  3. Step 3: Cross multiply
    12,793.99x = 17,651.01 × 7,754.57
  4. Step 4: Simplify right side
    12,793.99x = 136,875,992.62
  5. Step 5: Solve for x
    x = 136,875,992.62/12,793.99
  6. Step 6: Final answer
    x = 10,698.46

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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.