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Finding the Fourth Proportional to 8,705.52, 11,997.03 and 8,545.56

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Solution

The fourth proportional to 8,705.52, 11,997.03 and 8,545.56 is: 11,776.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.52 : 11,997.03 = 8,545.56 : x
  2. Step 2: Convert to fraction form
    8,705.52/11,997.03 = 8,545.56/x
  3. Step 3: Cross multiply
    8,705.52x = 11,997.03 × 8,545.56
  4. Step 4: Simplify right side
    8,705.52x = 102,521,339.69
  5. Step 5: Solve for x
    x = 102,521,339.69/8,705.52
  6. Step 6: Final answer
    x = 11,776.59

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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.