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Finding the Fourth Proportional to 12,023.79, 18,068.31 and 6,481.14

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Solution

The fourth proportional to 12,023.79, 18,068.31 and 6,481.14 is: 9,739.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,023.79 : 18,068.31 = 6,481.14 : x
  2. Step 2: Convert to fraction form
    12,023.79/18,068.31 = 6,481.14/x
  3. Step 3: Cross multiply
    12,023.79x = 18,068.31 × 6,481.14
  4. Step 4: Simplify right side
    12,023.79x = 117,103,246.67
  5. Step 5: Solve for x
    x = 117,103,246.67/12,023.79
  6. Step 6: Final answer
    x = 9,739.30

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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.