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Finding the Fourth Proportional to 18,379.60, 27,574.64 and 9,022.43

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Solution

The fourth proportional to 18,379.60, 27,574.64 and 9,022.43 is: 13,536.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379.60 : 27,574.64 = 9,022.43 : x
  2. Step 2: Convert to fraction form
    18,379.60/27,574.64 = 9,022.43/x
  3. Step 3: Cross multiply
    18,379.60x = 27,574.64 × 9,022.43
  4. Step 4: Simplify right side
    18,379.60x = 248,790,259.18
  5. Step 5: Solve for x
    x = 248,790,259.18/18,379.60
  6. Step 6: Final answer
    x = 13,536.22

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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.