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Finding the Fourth Proportional to 21,844.60, 32,759.86 and 7,050.05

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Solution

The fourth proportional to 21,844.60, 32,759.86 and 7,050.05 is: 10,572.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,844.60 : 32,759.86 = 7,050.05 : x
  2. Step 2: Convert to fraction form
    21,844.60/32,759.86 = 7,050.05/x
  3. Step 3: Cross multiply
    21,844.60x = 32,759.86 × 7,050.05
  4. Step 4: Simplify right side
    21,844.60x = 230,958,650.99
  5. Step 5: Solve for x
    x = 230,958,650.99/21,844.60
  6. Step 6: Final answer
    x = 10,572.80

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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.