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Finding the Fourth Proportional to 18,645.76, 27,967.72 and 6,958.07

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Solution

The fourth proportional to 18,645.76, 27,967.72 and 6,958.07 is: 10,436.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,645.76 : 27,967.72 = 6,958.07 : x
  2. Step 2: Convert to fraction form
    18,645.76/27,967.72 = 6,958.07/x
  3. Step 3: Cross multiply
    18,645.76x = 27,967.72 × 6,958.07
  4. Step 4: Simplify right side
    18,645.76x = 194,601,213.66
  5. Step 5: Solve for x
    x = 194,601,213.66/18,645.76
  6. Step 6: Final answer
    x = 10,436.76

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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.