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Finding the Fourth Proportional to 61,089.02, 84,286.88 and 35,241.31

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Solution

The fourth proportional to 61,089.02, 84,286.88 and 35,241.31 is: 48,623.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,089.02 : 84,286.88 = 35,241.31 : x
  2. Step 2: Convert to fraction form
    61,089.02/84,286.88 = 35,241.31/x
  3. Step 3: Cross multiply
    61,089.02x = 84,286.88 × 35,241.31
  4. Step 4: Simplify right side
    61,089.02x = 2,970,380,128.32
  5. Step 5: Solve for x
    x = 2,970,380,128.32/61,089.02
  6. Step 6: Final answer
    x = 48,623.80

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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.