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Finding the Fourth Proportional to 13,028.38, 17,979.04 and 7,060.03

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Solution

The fourth proportional to 13,028.38, 17,979.04 and 7,060.03 is: 9,742.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,028.38 : 17,979.04 = 7,060.03 : x
  2. Step 2: Convert to fraction form
    13,028.38/17,979.04 = 7,060.03/x
  3. Step 3: Cross multiply
    13,028.38x = 17,979.04 × 7,060.03
  4. Step 4: Simplify right side
    13,028.38x = 126,932,499.17
  5. Step 5: Solve for x
    x = 126,932,499.17/13,028.38
  6. Step 6: Final answer
    x = 9,742.77

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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.