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Finding the Fourth Proportional to 11,900.50, 17,814.28 and 10,651.48

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Solution

The fourth proportional to 11,900.50, 17,814.28 and 10,651.48 is: 15,944.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,900.50 : 17,814.28 = 10,651.48 : x
  2. Step 2: Convert to fraction form
    11,900.50/17,814.28 = 10,651.48/x
  3. Step 3: Cross multiply
    11,900.50x = 17,814.28 × 10,651.48
  4. Step 4: Simplify right side
    11,900.50x = 189,748,447.13
  5. Step 5: Solve for x
    x = 189,748,447.13/11,900.50
  6. Step 6: Final answer
    x = 15,944.58

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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.