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Finding the Fourth Proportional to 8,676.02, 11,971.72 and 4,899

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Solution

The fourth proportional to 8,676.02, 11,971.72 and 4,899 is: 6,759.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.02 : 11,971.72 = 4,899 : x
  2. Step 2: Convert to fraction form
    8,676.02/11,971.72 = 4,899/x
  3. Step 3: Cross multiply
    8,676.02x = 11,971.72 × 4,899
  4. Step 4: Simplify right side
    8,676.02x = 58,649,456.28
  5. Step 5: Solve for x
    x = 58,649,456.28/8,676.02
  6. Step 6: Final answer
    x = 6,759.95

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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.