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Finding the Fourth Proportional to 18,673.26, 28,007.67 and 6,983.34

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Solution

The fourth proportional to 18,673.26, 28,007.67 and 6,983.34 is: 10,474.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,673.26 : 28,007.67 = 6,983.34 : x
  2. Step 2: Convert to fraction form
    18,673.26/28,007.67 = 6,983.34/x
  3. Step 3: Cross multiply
    18,673.26x = 28,007.67 × 6,983.34
  4. Step 4: Simplify right side
    18,673.26x = 195,587,082.22
  5. Step 5: Solve for x
    x = 195,587,082.22/18,673.26
  6. Step 6: Final answer
    x = 10,474.18

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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.