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Finding the Fourth Proportional to 51,324.80, 70,827.87 and 28,662.44

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Solution

The fourth proportional to 51,324.80, 70,827.87 and 28,662.44 is: 39,553.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,324.80 : 70,827.87 = 28,662.44 : x
  2. Step 2: Convert to fraction form
    51,324.80/70,827.87 = 28,662.44/x
  3. Step 3: Cross multiply
    51,324.80x = 70,827.87 × 28,662.44
  4. Step 4: Simplify right side
    51,324.80x = 2,030,099,574.20
  5. Step 5: Solve for x
    x = 2,030,099,574.20/51,324.80
  6. Step 6: Final answer
    x = 39,553.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.