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Finding the Fourth Proportional to 52,994.73, 79,491.90 and 13,551.78

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Solution

The fourth proportional to 52,994.73, 79,491.90 and 13,551.78 is: 20,327.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,994.73 : 79,491.90 = 13,551.78 : x
  2. Step 2: Convert to fraction form
    52,994.73/79,491.90 = 13,551.78/x
  3. Step 3: Cross multiply
    52,994.73x = 79,491.90 × 13,551.78
  4. Step 4: Simplify right side
    52,994.73x = 1,077,256,740.58
  5. Step 5: Solve for x
    x = 1,077,256,740.58/52,994.73
  6. Step 6: Final answer
    x = 20,327.62

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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.