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Finding the Fourth Proportional to 65,719.60, 98,593.80 and 26,266.80

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Solution

The fourth proportional to 65,719.60, 98,593.80 and 26,266.80 is: 39,405.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,719.60 : 98,593.80 = 26,266.80 : x
  2. Step 2: Convert to fraction form
    65,719.60/98,593.80 = 26,266.80/x
  3. Step 3: Cross multiply
    65,719.60x = 98,593.80 × 26,266.80
  4. Step 4: Simplify right side
    65,719.60x = 2,589,743,625.84
  5. Step 5: Solve for x
    x = 2,589,743,625.84/65,719.60
  6. Step 6: Final answer
    x = 39,405.96

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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.