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Finding the Fourth Proportional to 10,644.66, 14,689.49 and 5,928.98

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Solution

The fourth proportional to 10,644.66, 14,689.49 and 5,928.98 is: 8,181.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,644.66 : 14,689.49 = 5,928.98 : x
  2. Step 2: Convert to fraction form
    10,644.66/14,689.49 = 5,928.98/x
  3. Step 3: Cross multiply
    10,644.66x = 14,689.49 × 5,928.98
  4. Step 4: Simplify right side
    10,644.66x = 87,093,589.33
  5. Step 5: Solve for x
    x = 87,093,589.33/10,644.66
  6. Step 6: Final answer
    x = 8,181.90

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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.