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Finding the Fourth Proportional to 21,644.29, 32,464.79 and 7,604.44

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Solution

The fourth proportional to 21,644.29, 32,464.79 and 7,604.44 is: 11,406.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,644.29 : 32,464.79 = 7,604.44 : x
  2. Step 2: Convert to fraction form
    21,644.29/32,464.79 = 7,604.44/x
  3. Step 3: Cross multiply
    21,644.29x = 32,464.79 × 7,604.44
  4. Step 4: Simplify right side
    21,644.29x = 246,876,485.52
  5. Step 5: Solve for x
    x = 246,876,485.52/21,644.29
  6. Step 6: Final answer
    x = 11,406.08

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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.