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Finding the Fourth Proportional to 69,851.88, 96,390.60 and 39,634.44

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Solution

The fourth proportional to 69,851.88, 96,390.60 and 39,634.44 is: 54,692.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,851.88 : 96,390.60 = 39,634.44 : x
  2. Step 2: Convert to fraction form
    69,851.88/96,390.60 = 39,634.44/x
  3. Step 3: Cross multiply
    69,851.88x = 96,390.60 × 39,634.44
  4. Step 4: Simplify right side
    69,851.88x = 3,820,387,452.26
  5. Step 5: Solve for x
    x = 3,820,387,452.26/69,851.88
  6. Step 6: Final answer
    x = 54,692.69

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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.