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Finding the Fourth Proportional to 52,793.91, 72,851.81 and 28,916.73

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Solution

The fourth proportional to 52,793.91, 72,851.81 and 28,916.73 is: 39,903.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,793.91 : 72,851.81 = 28,916.73 : x
  2. Step 2: Convert to fraction form
    52,793.91/72,851.81 = 28,916.73/x
  3. Step 3: Cross multiply
    52,793.91x = 72,851.81 × 28,916.73
  4. Step 4: Simplify right side
    52,793.91x = 2,106,635,975.20
  5. Step 5: Solve for x
    x = 2,106,635,975.20/52,793.91
  6. Step 6: Final answer
    x = 39,903.01

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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.