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Finding the Fourth Proportional to 11,805.60, 17,687.58 and 11,103.24

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Solution

The fourth proportional to 11,805.60, 17,687.58 and 11,103.24 is: 16,635.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,805.60 : 17,687.58 = 11,103.24 : x
  2. Step 2: Convert to fraction form
    11,805.60/17,687.58 = 11,103.24/x
  3. Step 3: Cross multiply
    11,805.60x = 17,687.58 × 11,103.24
  4. Step 4: Simplify right side
    11,805.60x = 196,389,445.76
  5. Step 5: Solve for x
    x = 196,389,445.76/11,805.60
  6. Step 6: Final answer
    x = 16,635.28

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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.