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Finding the Fourth Proportional to 11,100.70, 16,654.11 and 7,153.30

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Solution

The fourth proportional to 11,100.70, 16,654.11 and 7,153.30 is: 10,731.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,100.70 : 16,654.11 = 7,153.30 : x
  2. Step 2: Convert to fraction form
    11,100.70/16,654.11 = 7,153.30/x
  3. Step 3: Cross multiply
    11,100.70x = 16,654.11 × 7,153.30
  4. Step 4: Simplify right side
    11,100.70x = 119,131,845.06
  5. Step 5: Solve for x
    x = 119,131,845.06/11,100.70
  6. Step 6: Final answer
    x = 10,731.92

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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.