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Finding the Fourth Proportional to 12,593.86, 17,379.57 and 6,929.19

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Solution

The fourth proportional to 12,593.86, 17,379.57 and 6,929.19 is: 9,562.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,593.86 : 17,379.57 = 6,929.19 : x
  2. Step 2: Convert to fraction form
    12,593.86/17,379.57 = 6,929.19/x
  3. Step 3: Cross multiply
    12,593.86x = 17,379.57 × 6,929.19
  4. Step 4: Simplify right side
    12,593.86x = 120,426,316.66
  5. Step 5: Solve for x
    x = 120,426,316.66/12,593.86
  6. Step 6: Final answer
    x = 9,562.30

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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.