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Finding the Fourth Proportional to 18,098.88, 27,141 and 7,003.50

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Solution

The fourth proportional to 18,098.88, 27,141 and 7,003.50 is: 10,502.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,098.88 : 27,141 = 7,003.50 : x
  2. Step 2: Convert to fraction form
    18,098.88/27,141 = 7,003.50/x
  3. Step 3: Cross multiply
    18,098.88x = 27,141 × 7,003.50
  4. Step 4: Simplify right side
    18,098.88x = 190,081,993.50
  5. Step 5: Solve for x
    x = 190,081,993.50/18,098.88
  6. Step 6: Final answer
    x = 10,502.42

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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.