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Finding the Fourth Proportional to 18,606.30, 27,909.44 and 17,425.32

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Solution

The fourth proportional to 18,606.30, 27,909.44 and 17,425.32 is: 26,137.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,606.30 : 27,909.44 = 17,425.32 : x
  2. Step 2: Convert to fraction form
    18,606.30/27,909.44 = 17,425.32/x
  3. Step 3: Cross multiply
    18,606.30x = 27,909.44 × 17,425.32
  4. Step 4: Simplify right side
    18,606.30x = 486,330,923.02
  5. Step 5: Solve for x
    x = 486,330,923.02/18,606.30
  6. Step 6: Final answer
    x = 26,137.97

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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.