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Finding the Fourth Proportional to 12,696.44, 17,521.04 and 7,107.44

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Solution

The fourth proportional to 12,696.44, 17,521.04 and 7,107.44 is: 9,808.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,696.44 : 17,521.04 = 7,107.44 : x
  2. Step 2: Convert to fraction form
    12,696.44/17,521.04 = 7,107.44/x
  3. Step 3: Cross multiply
    12,696.44x = 17,521.04 × 7,107.44
  4. Step 4: Simplify right side
    12,696.44x = 124,529,740.54
  5. Step 5: Solve for x
    x = 124,529,740.54/12,696.44
  6. Step 6: Final answer
    x = 9,808.24

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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.