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Finding the Fourth Proportional to 8,516.66, 11,747.16 and 5,153.66

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Solution

The fourth proportional to 8,516.66, 11,747.16 and 5,153.66 is: 7,108.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,516.66 : 11,747.16 = 5,153.66 : x
  2. Step 2: Convert to fraction form
    8,516.66/11,747.16 = 5,153.66/x
  3. Step 3: Cross multiply
    8,516.66x = 11,747.16 × 5,153.66
  4. Step 4: Simplify right side
    8,516.66x = 60,540,868.61
  5. Step 5: Solve for x
    x = 60,540,868.61/8,516.66
  6. Step 6: Final answer
    x = 7,108.52

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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.