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Finding the Fourth Proportional to 12,593.71, 17,379.35 and 6,928.82

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Solution

The fourth proportional to 12,593.71, 17,379.35 and 6,928.82 is: 9,561.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,593.71 : 17,379.35 = 6,928.82 : x
  2. Step 2: Convert to fraction form
    12,593.71/17,379.35 = 6,928.82/x
  3. Step 3: Cross multiply
    12,593.71x = 17,379.35 × 6,928.82
  4. Step 4: Simplify right side
    12,593.71x = 120,418,448.64
  5. Step 5: Solve for x
    x = 120,418,448.64/12,593.71
  6. Step 6: Final answer
    x = 9,561.79

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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.