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Finding the Fourth Proportional to 12,593.61, 17,379.41 and 6,928.83

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Solution

The fourth proportional to 12,593.61, 17,379.41 and 6,928.83 is: 9,561.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,593.61 : 17,379.41 = 6,928.83 : x
  2. Step 2: Convert to fraction form
    12,593.61/17,379.41 = 6,928.83/x
  3. Step 3: Cross multiply
    12,593.61x = 17,379.41 × 6,928.83
  4. Step 4: Simplify right side
    12,593.61x = 120,418,942.75
  5. Step 5: Solve for x
    x = 120,418,942.75/12,593.61
  6. Step 6: Final answer
    x = 9,561.91

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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.