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Finding the Fourth Proportional to 8,356.41, 11,531.85 and 4,630.41

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Solution

The fourth proportional to 8,356.41, 11,531.85 and 4,630.41 is: 6,389.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,356.41 : 11,531.85 = 4,630.41 : x
  2. Step 2: Convert to fraction form
    8,356.41/11,531.85 = 4,630.41/x
  3. Step 3: Cross multiply
    8,356.41x = 11,531.85 × 4,630.41
  4. Step 4: Simplify right side
    8,356.41x = 53,397,193.56
  5. Step 5: Solve for x
    x = 53,397,193.56/8,356.41
  6. Step 6: Final answer
    x = 6,389.97

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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.