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Finding the Fourth Proportional to 8,644.35, 11,930.15 and 4,868.41

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Solution

The fourth proportional to 8,644.35, 11,930.15 and 4,868.41 is: 6,718.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,644.35 : 11,930.15 = 4,868.41 : x
  2. Step 2: Convert to fraction form
    8,644.35/11,930.15 = 4,868.41/x
  3. Step 3: Cross multiply
    8,644.35x = 11,930.15 × 4,868.41
  4. Step 4: Simplify right side
    8,644.35x = 58,080,861.56
  5. Step 5: Solve for x
    x = 58,080,861.56/8,644.35
  6. Step 6: Final answer
    x = 6,718.94

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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.