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Finding the Fourth Proportional to 52,778.60, 72,868.44 and 47,103.56

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Solution

The fourth proportional to 52,778.60, 72,868.44 and 47,103.56 is: 65,033.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,778.60 : 72,868.44 = 47,103.56 : x
  2. Step 2: Convert to fraction form
    52,778.60/72,868.44 = 47,103.56/x
  3. Step 3: Cross multiply
    52,778.60x = 72,868.44 × 47,103.56
  4. Step 4: Simplify right side
    52,778.60x = 3,432,362,935.65
  5. Step 5: Solve for x
    x = 3,432,362,935.65/52,778.60
  6. Step 6: Final answer
    x = 65,033.23

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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.