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Finding the Fourth Proportional to 12,694.04, 17,517.78 and 7,105.04

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Solution

The fourth proportional to 12,694.04, 17,517.78 and 7,105.04 is: 9,804.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,694.04 : 17,517.78 = 7,105.04 : x
  2. Step 2: Convert to fraction form
    12,694.04/17,517.78 = 7,105.04/x
  3. Step 3: Cross multiply
    12,694.04x = 17,517.78 × 7,105.04
  4. Step 4: Simplify right side
    12,694.04x = 124,464,440.02
  5. Step 5: Solve for x
    x = 124,464,440.02/12,694.04
  6. Step 6: Final answer
    x = 9,804.95

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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.