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Finding the Fourth Proportional to 8,469.74, 11,689.11 and 4,884.84

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Solution

The fourth proportional to 8,469.74, 11,689.11 and 4,884.84 is: 6,741.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,469.74 : 11,689.11 = 4,884.84 : x
  2. Step 2: Convert to fraction form
    8,469.74/11,689.11 = 4,884.84/x
  3. Step 3: Cross multiply
    8,469.74x = 11,689.11 × 4,884.84
  4. Step 4: Simplify right side
    8,469.74x = 57,099,432.09
  5. Step 5: Solve for x
    x = 57,099,432.09/8,469.74
  6. Step 6: Final answer
    x = 6,741.58

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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.