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Finding the Fourth Proportional to 6,474.35, 8,936.60 and 4,980.50

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Solution

The fourth proportional to 6,474.35, 8,936.60 and 4,980.50 is: 6,874.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,474.35 : 8,936.60 = 4,980.50 : x
  2. Step 2: Convert to fraction form
    6,474.35/8,936.60 = 4,980.50/x
  3. Step 3: Cross multiply
    6,474.35x = 8,936.60 × 4,980.50
  4. Step 4: Simplify right side
    6,474.35x = 44,508,792.52
  5. Step 5: Solve for x
    x = 44,508,792.52/6,474.35
  6. Step 6: Final answer
    x = 6,874.64

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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.