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Finding the Fourth Proportional to 39,692.60, 54,764.60 and 25,553.64

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Solution

The fourth proportional to 39,692.60, 54,764.60 and 25,553.64 is: 35,256.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,692.60 : 54,764.60 = 25,553.64 : x
  2. Step 2: Convert to fraction form
    39,692.60/54,764.60 = 25,553.64/x
  3. Step 3: Cross multiply
    39,692.60x = 54,764.60 × 25,553.64
  4. Step 4: Simplify right side
    39,692.60x = 1,399,434,873.14
  5. Step 5: Solve for x
    x = 1,399,434,873.14/39,692.60
  6. Step 6: Final answer
    x = 35,256.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.