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Finding the Fourth Proportional to 35,617.60, 53,458.80 and 30,692.80

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Solution

The fourth proportional to 35,617.60, 53,458.80 and 30,692.80 is: 46,067.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,617.60 : 53,458.80 = 30,692.80 : x
  2. Step 2: Convert to fraction form
    35,617.60/53,458.80 = 30,692.80/x
  3. Step 3: Cross multiply
    35,617.60x = 53,458.80 × 30,692.80
  4. Step 4: Simplify right side
    35,617.60x = 1,640,800,256.64
  5. Step 5: Solve for x
    x = 1,640,800,256.64/35,617.60
  6. Step 6: Final answer
    x = 46,067.12

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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.