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Finding the Fourth Proportional to 10,846.56, 16,269.84 and 3,921.12

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Solution

The fourth proportional to 10,846.56, 16,269.84 and 3,921.12 is: 5,881.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,846.56 : 16,269.84 = 3,921.12 : x
  2. Step 2: Convert to fraction form
    10,846.56/16,269.84 = 3,921.12/x
  3. Step 3: Cross multiply
    10,846.56x = 16,269.84 × 3,921.12
  4. Step 4: Simplify right side
    10,846.56x = 63,795,995.02
  5. Step 5: Solve for x
    x = 63,795,995.02/10,846.56
  6. Step 6: Final answer
    x = 5,881.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.