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Finding the Fourth Proportional to 17,326.55, 25,989.74 and 6,789.12

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Solution

The fourth proportional to 17,326.55, 25,989.74 and 6,789.12 is: 10,183.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,326.55 : 25,989.74 = 6,789.12 : x
  2. Step 2: Convert to fraction form
    17,326.55/25,989.74 = 6,789.12/x
  3. Step 3: Cross multiply
    17,326.55x = 25,989.74 × 6,789.12
  4. Step 4: Simplify right side
    17,326.55x = 176,447,446.66
  5. Step 5: Solve for x
    x = 176,447,446.66/17,326.55
  6. Step 6: Final answer
    x = 10,183.65

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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.