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Finding the Fourth Proportional to 6,556.72, 9,052.74 and 6,138.44

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Solution

The fourth proportional to 6,556.72, 9,052.74 and 6,138.44 is: 8,475.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,556.72 : 9,052.74 = 6,138.44 : x
  2. Step 2: Convert to fraction form
    6,556.72/9,052.74 = 6,138.44/x
  3. Step 3: Cross multiply
    6,556.72x = 9,052.74 × 6,138.44
  4. Step 4: Simplify right side
    6,556.72x = 55,569,701.33
  5. Step 5: Solve for x
    x = 55,569,701.33/6,556.72
  6. Step 6: Final answer
    x = 8,475.23

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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.