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Finding the Fourth Proportional to 11,102.55, 16,653.83 and 9,612.15

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Solution

The fourth proportional to 11,102.55, 16,653.83 and 9,612.15 is: 14,418.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,102.55 : 16,653.83 = 9,612.15 : x
  2. Step 2: Convert to fraction form
    11,102.55/16,653.83 = 9,612.15/x
  3. Step 3: Cross multiply
    11,102.55x = 16,653.83 × 9,612.15
  4. Step 4: Simplify right side
    11,102.55x = 160,079,063.97
  5. Step 5: Solve for x
    x = 160,079,063.97/11,102.55
  6. Step 6: Final answer
    x = 14,418.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.