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Finding the Fourth Proportional to 65,502.41, 98,171.39 and 28,018.42

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Solution

The fourth proportional to 65,502.41, 98,171.39 and 28,018.42 is: 41,992.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,502.41 : 98,171.39 = 28,018.42 : x
  2. Step 2: Convert to fraction form
    65,502.41/98,171.39 = 28,018.42/x
  3. Step 3: Cross multiply
    65,502.41x = 98,171.39 × 28,018.42
  4. Step 4: Simplify right side
    65,502.41x = 2,750,607,061.62
  5. Step 5: Solve for x
    x = 2,750,607,061.62/65,502.41
  6. Step 6: Final answer
    x = 41,992.46

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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.