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Finding the Fourth Proportional to 18,395.05, 27,570.97 and 8,513.46

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Solution

The fourth proportional to 18,395.05, 27,570.97 and 8,513.46 is: 12,760.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,395.05 : 27,570.97 = 8,513.46 : x
  2. Step 2: Convert to fraction form
    18,395.05/27,570.97 = 8,513.46/x
  3. Step 3: Cross multiply
    18,395.05x = 27,570.97 × 8,513.46
  4. Step 4: Simplify right side
    18,395.05x = 234,724,350.26
  5. Step 5: Solve for x
    x = 234,724,350.26/18,395.05
  6. Step 6: Final answer
    x = 12,760.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.