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Finding the Fourth Proportional to 13,028.62, 17,979.39 and 7,060.27

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Solution

The fourth proportional to 13,028.62, 17,979.39 and 7,060.27 is: 9,743.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,028.62 : 17,979.39 = 7,060.27 : x
  2. Step 2: Convert to fraction form
    13,028.62/17,979.39 = 7,060.27/x
  3. Step 3: Cross multiply
    13,028.62x = 17,979.39 × 7,060.27
  4. Step 4: Simplify right side
    13,028.62x = 126,939,347.84
  5. Step 5: Solve for x
    x = 126,939,347.84/13,028.62
  6. Step 6: Final answer
    x = 9,743.12

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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.