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Finding the Fourth Proportional to 13,028.36, 17,979.06 and 7,060.03

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Solution

The fourth proportional to 13,028.36, 17,979.06 and 7,060.03 is: 9,742.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,028.36 : 17,979.06 = 7,060.03 : x
  2. Step 2: Convert to fraction form
    13,028.36/17,979.06 = 7,060.03/x
  3. Step 3: Cross multiply
    13,028.36x = 17,979.06 × 7,060.03
  4. Step 4: Simplify right side
    13,028.36x = 126,932,720.62
  5. Step 5: Solve for x
    x = 126,932,720.62/13,028.36
  6. Step 6: Final answer
    x = 9,742.80

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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.