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Finding the Fourth Proportional to 53,340, 79,994.88 and 22,136.64

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Solution

The fourth proportional to 53,340, 79,994.88 and 22,136.64 is: 33,198.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,340 : 79,994.88 = 22,136.64 : x
  2. Step 2: Convert to fraction form
    53,340/79,994.88 = 22,136.64/x
  3. Step 3: Cross multiply
    53,340x = 79,994.88 × 22,136.64
  4. Step 4: Simplify right side
    53,340x = 1,770,817,860.40
  5. Step 5: Solve for x
    x = 1,770,817,860.40/53,340
  6. Step 6: Final answer
    x = 33,198.69

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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.