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Finding the Fourth Proportional to 8,462.84, 12,697.25 and 3,782.43

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Solution

The fourth proportional to 8,462.84, 12,697.25 and 3,782.43 is: 5,674.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,462.84 : 12,697.25 = 3,782.43 : x
  2. Step 2: Convert to fraction form
    8,462.84/12,697.25 = 3,782.43/x
  3. Step 3: Cross multiply
    8,462.84x = 12,697.25 × 3,782.43
  4. Step 4: Simplify right side
    8,462.84x = 48,026,440.41
  5. Step 5: Solve for x
    x = 48,026,440.41/8,462.84
  6. Step 6: Final answer
    x = 5,674.98

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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.