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Finding the Fourth Proportional to 12,375.86, 17,076.56 and 6,995.84

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Solution

The fourth proportional to 12,375.86, 17,076.56 and 6,995.84 is: 9,653.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,375.86 : 17,076.56 = 6,995.84 : x
  2. Step 2: Convert to fraction form
    12,375.86/17,076.56 = 6,995.84/x
  3. Step 3: Cross multiply
    12,375.86x = 17,076.56 × 6,995.84
  4. Step 4: Simplify right side
    12,375.86x = 119,464,761.15
  5. Step 5: Solve for x
    x = 119,464,761.15/12,375.86
  6. Step 6: Final answer
    x = 9,653.05

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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.