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Finding the Fourth Proportional to 4,946.86, 7,420.52 and 2,753.94

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Solution

The fourth proportional to 4,946.86, 7,420.52 and 2,753.94 is: 4,131.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,946.86 : 7,420.52 = 2,753.94 : x
  2. Step 2: Convert to fraction form
    4,946.86/7,420.52 = 2,753.94/x
  3. Step 3: Cross multiply
    4,946.86x = 7,420.52 × 2,753.94
  4. Step 4: Simplify right side
    4,946.86x = 20,435,629.75
  5. Step 5: Solve for x
    x = 20,435,629.75/4,946.86
  6. Step 6: Final answer
    x = 4,131.03

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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.