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Finding the Fourth Proportional to 11,169.56, 15,404.10 and 8,510.60

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Solution

The fourth proportional to 11,169.56, 15,404.10 and 8,510.60 is: 11,737.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,169.56 : 15,404.10 = 8,510.60 : x
  2. Step 2: Convert to fraction form
    11,169.56/15,404.10 = 8,510.60/x
  3. Step 3: Cross multiply
    11,169.56x = 15,404.10 × 8,510.60
  4. Step 4: Simplify right side
    11,169.56x = 131,098,133.46
  5. Step 5: Solve for x
    x = 131,098,133.46/11,169.56
  6. Step 6: Final answer
    x = 11,737.09

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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.