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Finding the Fourth Proportional to 6,558.38, 9,047.98 and 4,321.44

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Solution

The fourth proportional to 6,558.38, 9,047.98 and 4,321.44 is: 5,961.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,558.38 : 9,047.98 = 4,321.44 : x
  2. Step 2: Convert to fraction form
    6,558.38/9,047.98 = 4,321.44/x
  3. Step 3: Cross multiply
    6,558.38x = 9,047.98 × 4,321.44
  4. Step 4: Simplify right side
    6,558.38x = 39,100,302.69
  5. Step 5: Solve for x
    x = 39,100,302.69/6,558.38
  6. Step 6: Final answer
    x = 5,961.88

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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.