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Finding the Fourth Proportional to 18,087.56, 27,098.48 and 17,693.90

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Solution

The fourth proportional to 18,087.56, 27,098.48 and 17,693.90 is: 26,508.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.56 : 27,098.48 = 17,693.90 : x
  2. Step 2: Convert to fraction form
    18,087.56/27,098.48 = 17,693.90/x
  3. Step 3: Cross multiply
    18,087.56x = 27,098.48 × 17,693.90
  4. Step 4: Simplify right side
    18,087.56x = 479,477,571.31
  5. Step 5: Solve for x
    x = 479,477,571.31/18,087.56
  6. Step 6: Final answer
    x = 26,508.70

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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.