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Finding the Fourth Proportional to 52,797.92, 79,112.64 and 38,692.58

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Solution

The fourth proportional to 52,797.92, 79,112.64 and 38,692.58 is: 57,977.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,797.92 : 79,112.64 = 38,692.58 : x
  2. Step 2: Convert to fraction form
    52,797.92/79,112.64 = 38,692.58/x
  3. Step 3: Cross multiply
    52,797.92x = 79,112.64 × 38,692.58
  4. Step 4: Simplify right side
    52,797.92x = 3,061,072,152.21
  5. Step 5: Solve for x
    x = 3,061,072,152.21/52,797.92
  6. Step 6: Final answer
    x = 57,977.14

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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.