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Finding the Fourth Proportional to 18,619.04, 27,939.48 and 6,932

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Solution

The fourth proportional to 18,619.04, 27,939.48 and 6,932 is: 10,402.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,619.04 : 27,939.48 = 6,932 : x
  2. Step 2: Convert to fraction form
    18,619.04/27,939.48 = 6,932/x
  3. Step 3: Cross multiply
    18,619.04x = 27,939.48 × 6,932
  4. Step 4: Simplify right side
    18,619.04x = 193,676,475.36
  5. Step 5: Solve for x
    x = 193,676,475.36/18,619.04
  6. Step 6: Final answer
    x = 10,402.07

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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.