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Finding the Fourth Proportional to 8,881.77, 12,255.87 and 4,902.63

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Solution

The fourth proportional to 8,881.77, 12,255.87 and 4,902.63 is: 6,765.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,881.77 : 12,255.87 = 4,902.63 : x
  2. Step 2: Convert to fraction form
    8,881.77/12,255.87 = 4,902.63/x
  3. Step 3: Cross multiply
    8,881.77x = 12,255.87 × 4,902.63
  4. Step 4: Simplify right side
    8,881.77x = 60,085,995.94
  5. Step 5: Solve for x
    x = 60,085,995.94/8,881.77
  6. Step 6: Final answer
    x = 6,765.09

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1.5x scale

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.