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Finding the Fourth Proportional to 13,028.54, 17,979.32 and 7,060.06

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Solution

The fourth proportional to 13,028.54, 17,979.32 and 7,060.06 is: 9,742.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,028.54 : 17,979.32 = 7,060.06 : x
  2. Step 2: Convert to fraction form
    13,028.54/17,979.32 = 7,060.06/x
  3. Step 3: Cross multiply
    13,028.54x = 17,979.32 × 7,060.06
  4. Step 4: Simplify right side
    13,028.54x = 126,934,952.76
  5. Step 5: Solve for x
    x = 126,934,952.76/13,028.54
  6. Step 6: Final answer
    x = 9,742.84

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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.