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Finding the Fourth Proportional to 13,951.80, 20,930.40 and 6,054.30

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Solution

The fourth proportional to 13,951.80, 20,930.40 and 6,054.30 is: 9,082.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,951.80 : 20,930.40 = 6,054.30 : x
  2. Step 2: Convert to fraction form
    13,951.80/20,930.40 = 6,054.30/x
  3. Step 3: Cross multiply
    13,951.80x = 20,930.40 × 6,054.30
  4. Step 4: Simplify right side
    13,951.80x = 126,718,920.72
  5. Step 5: Solve for x
    x = 126,718,920.72/13,951.80
  6. Step 6: Final answer
    x = 9,082.62

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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.