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Finding the Fourth Proportional to 65,778.34, 98,651.06 and 25,805.46

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Solution

The fourth proportional to 65,778.34, 98,651.06 and 25,805.46 is: 38,701.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,778.34 : 98,651.06 = 25,805.46 : x
  2. Step 2: Convert to fraction form
    65,778.34/98,651.06 = 25,805.46/x
  3. Step 3: Cross multiply
    65,778.34x = 98,651.06 × 25,805.46
  4. Step 4: Simplify right side
    65,778.34x = 2,545,735,982.79
  5. Step 5: Solve for x
    x = 2,545,735,982.79/65,778.34
  6. Step 6: Final answer
    x = 38,701.74

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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.