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Finding the Fourth Proportional to 13,013.73, 17,958.79 and 7,045.27

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Solution

The fourth proportional to 13,013.73, 17,958.79 and 7,045.27 is: 9,722.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013.73 : 17,958.79 = 7,045.27 : x
  2. Step 2: Convert to fraction form
    13,013.73/17,958.79 = 7,045.27/x
  3. Step 3: Cross multiply
    13,013.73x = 17,958.79 × 7,045.27
  4. Step 4: Simplify right side
    13,013.73x = 126,524,524.42
  5. Step 5: Solve for x
    x = 126,524,524.42/13,013.73
  6. Step 6: Final answer
    x = 9,722.39

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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.