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Finding the Fourth Proportional to 55,116.99, 82,698.57 and 28,838.97

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Solution

The fourth proportional to 55,116.99, 82,698.57 and 28,838.97 is: 43,270.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,116.99 : 82,698.57 = 28,838.97 : x
  2. Step 2: Convert to fraction form
    55,116.99/82,698.57 = 28,838.97/x
  3. Step 3: Cross multiply
    55,116.99x = 82,698.57 × 28,838.97
  4. Step 4: Simplify right side
    55,116.99x = 2,384,941,579.27
  5. Step 5: Solve for x
    x = 2,384,941,579.27/55,116.99
  6. Step 6: Final answer
    x = 43,270.53

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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.