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Finding the Fourth Proportional to 65,849.99, 98,778.15 and 21,476.66

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Solution

The fourth proportional to 65,849.99, 98,778.15 and 21,476.66 is: 32,216.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,849.99 : 98,778.15 = 21,476.66 : x
  2. Step 2: Convert to fraction form
    65,849.99/98,778.15 = 21,476.66/x
  3. Step 3: Cross multiply
    65,849.99x = 98,778.15 × 21,476.66
  4. Step 4: Simplify right side
    65,849.99x = 2,121,424,249.09
  5. Step 5: Solve for x
    x = 2,121,424,249.09/65,849.99
  6. Step 6: Final answer
    x = 32,216.02

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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.