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Finding the Fourth Proportional to 18,645.92, 27,967.95 and 6,958.22

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Solution

The fourth proportional to 18,645.92, 27,967.95 and 6,958.22 is: 10,436.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,645.92 : 27,967.95 = 6,958.22 : x
  2. Step 2: Convert to fraction form
    18,645.92/27,967.95 = 6,958.22/x
  3. Step 3: Cross multiply
    18,645.92x = 27,967.95 × 6,958.22
  4. Step 4: Simplify right side
    18,645.92x = 194,607,009.21
  5. Step 5: Solve for x
    x = 194,607,009.21/18,645.92
  6. Step 6: Final answer
    x = 10,436.98

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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.