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Finding the Fourth Proportional to 9,245.01, 12,772.59 and 8,789.84

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Solution

The fourth proportional to 9,245.01, 12,772.59 and 8,789.84 is: 12,143.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,245.01 : 12,772.59 = 8,789.84 : x
  2. Step 2: Convert to fraction form
    9,245.01/12,772.59 = 8,789.84/x
  3. Step 3: Cross multiply
    9,245.01x = 12,772.59 × 8,789.84
  4. Step 4: Simplify right side
    9,245.01x = 112,268,958.62
  5. Step 5: Solve for x
    x = 112,268,958.62/9,245.01
  6. Step 6: Final answer
    x = 12,143.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.