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Finding the Fourth Proportional to 21,773.69, 32,675.10 and 7,922.69

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Solution

The fourth proportional to 21,773.69, 32,675.10 and 7,922.69 is: 11,889.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,773.69 : 32,675.10 = 7,922.69 : x
  2. Step 2: Convert to fraction form
    21,773.69/32,675.10 = 7,922.69/x
  3. Step 3: Cross multiply
    21,773.69x = 32,675.10 × 7,922.69
  4. Step 4: Simplify right side
    21,773.69x = 258,874,524.64
  5. Step 5: Solve for x
    x = 258,874,524.64/21,773.69
  6. Step 6: Final answer
    x = 11,889.33

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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.