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Finding the Fourth Proportional to 55,117.99, 82,700.07 and 28,839.97

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Solution

The fourth proportional to 55,117.99, 82,700.07 and 28,839.97 is: 43,272.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,117.99 : 82,700.07 = 28,839.97 : x
  2. Step 2: Convert to fraction form
    55,117.99/82,700.07 = 28,839.97/x
  3. Step 3: Cross multiply
    55,117.99x = 82,700.07 × 28,839.97
  4. Step 4: Simplify right side
    55,117.99x = 2,385,067,537.80
  5. Step 5: Solve for x
    x = 2,385,067,537.80/55,117.99
  6. Step 6: Final answer
    x = 43,272.03

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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.