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Finding the Fourth Proportional to 8,553.36, 11,701.92 and 8,516.40

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Solution

The fourth proportional to 8,553.36, 11,701.92 and 8,516.40 is: 11,651.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,553.36 : 11,701.92 = 8,516.40 : x
  2. Step 2: Convert to fraction form
    8,553.36/11,701.92 = 8,516.40/x
  3. Step 3: Cross multiply
    8,553.36x = 11,701.92 × 8,516.40
  4. Step 4: Simplify right side
    8,553.36x = 99,658,231.49
  5. Step 5: Solve for x
    x = 99,658,231.49/8,553.36
  6. Step 6: Final answer
    x = 11,651.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.