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Finding the Fourth Proportional to 4,817.45, 6,627.26 and 3,931.31

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Solution

The fourth proportional to 4,817.45, 6,627.26 and 3,931.31 is: 5,408.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,817.45 : 6,627.26 = 3,931.31 : x
  2. Step 2: Convert to fraction form
    4,817.45/6,627.26 = 3,931.31/x
  3. Step 3: Cross multiply
    4,817.45x = 6,627.26 × 3,931.31
  4. Step 4: Simplify right side
    4,817.45x = 26,053,760.72
  5. Step 5: Solve for x
    x = 26,053,760.72/4,817.45
  6. Step 6: Final answer
    x = 5,408.21

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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.