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Finding the Fourth Proportional to 11,805.76, 17,674.32 and 6,860.32

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Solution

The fourth proportional to 11,805.76, 17,674.32 and 6,860.32 is: 10,270.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,805.76 : 17,674.32 = 6,860.32 : x
  2. Step 2: Convert to fraction form
    11,805.76/17,674.32 = 6,860.32/x
  3. Step 3: Cross multiply
    11,805.76x = 17,674.32 × 6,860.32
  4. Step 4: Simplify right side
    11,805.76x = 121,251,490.98
  5. Step 5: Solve for x
    x = 121,251,490.98/11,805.76
  6. Step 6: Final answer
    x = 10,270.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.