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Finding the Fourth Proportional to 8,516.97, 11,755.05 and 4,790.97

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Solution

The fourth proportional to 8,516.97, 11,755.05 and 4,790.97 is: 6,612.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,516.97 : 11,755.05 = 4,790.97 : x
  2. Step 2: Convert to fraction form
    8,516.97/11,755.05 = 4,790.97/x
  3. Step 3: Cross multiply
    8,516.97x = 11,755.05 × 4,790.97
  4. Step 4: Simplify right side
    8,516.97x = 56,318,091.90
  5. Step 5: Solve for x
    x = 56,318,091.90/8,516.97
  6. Step 6: Final answer
    x = 6,612.46

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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.