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Finding the Fourth Proportional to 65,893.60, 98,840.40 and 36,296.20

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Solution

The fourth proportional to 65,893.60, 98,840.40 and 36,296.20 is: 54,444.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,893.60 : 98,840.40 = 36,296.20 : x
  2. Step 2: Convert to fraction form
    65,893.60/98,840.40 = 36,296.20/x
  3. Step 3: Cross multiply
    65,893.60x = 98,840.40 × 36,296.20
  4. Step 4: Simplify right side
    65,893.60x = 3,587,530,926.48
  5. Step 5: Solve for x
    x = 3,587,530,926.48/65,893.60
  6. Step 6: Final answer
    x = 54,444.30

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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.