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Finding the Fourth Proportional to 65,495.66, 98,161.28 and 28,011.66

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Solution

The fourth proportional to 65,495.66, 98,161.28 and 28,011.66 is: 41,982.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,495.66 : 98,161.28 = 28,011.66 : x
  2. Step 2: Convert to fraction form
    65,495.66/98,161.28 = 28,011.66/x
  3. Step 3: Cross multiply
    65,495.66x = 98,161.28 × 28,011.66
  4. Step 4: Simplify right side
    65,495.66x = 2,749,660,154.97
  5. Step 5: Solve for x
    x = 2,749,660,154.97/65,495.66
  6. Step 6: Final answer
    x = 41,982.33

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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.