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Finding the Fourth Proportional to 29,963.80, 44,945.70 and 28,811.80

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Solution

The fourth proportional to 29,963.80, 44,945.70 and 28,811.80 is: 43,217.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,963.80 : 44,945.70 = 28,811.80 : x
  2. Step 2: Convert to fraction form
    29,963.80/44,945.70 = 28,811.80/x
  3. Step 3: Cross multiply
    29,963.80x = 44,945.70 × 28,811.80
  4. Step 4: Simplify right side
    29,963.80x = 1,294,966,519.26
  5. Step 5: Solve for x
    x = 1,294,966,519.26/29,963.80
  6. Step 6: Final answer
    x = 43,217.70

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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.