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Finding the Fourth Proportional to 12,385.41, 17,091.86 and 6,796.41

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Solution

The fourth proportional to 12,385.41, 17,091.86 and 6,796.41 is: 9,379.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,385.41 : 17,091.86 = 6,796.41 : x
  2. Step 2: Convert to fraction form
    12,385.41/17,091.86 = 6,796.41/x
  3. Step 3: Cross multiply
    12,385.41x = 17,091.86 × 6,796.41
  4. Step 4: Simplify right side
    12,385.41x = 116,163,228.38
  5. Step 5: Solve for x
    x = 116,163,228.38/12,385.41
  6. Step 6: Final answer
    x = 9,379.04

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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.