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Finding the Fourth Proportional to 4,977.86, 7,462.34 and 2,054.30

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Solution

The fourth proportional to 4,977.86, 7,462.34 and 2,054.30 is: 3,079.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.86 : 7,462.34 = 2,054.30 : x
  2. Step 2: Convert to fraction form
    4,977.86/7,462.34 = 2,054.30/x
  3. Step 3: Cross multiply
    4,977.86x = 7,462.34 × 2,054.30
  4. Step 4: Simplify right side
    4,977.86x = 15,329,874.79
  5. Step 5: Solve for x
    x = 15,329,874.79/4,977.86
  6. Step 6: Final answer
    x = 3,079.61

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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.