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Finding the Fourth Proportional to 11,495.83, 17,143.14 and 11,390.73

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Solution

The fourth proportional to 11,495.83, 17,143.14 and 11,390.73 is: 16,986.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,495.83 : 17,143.14 = 11,390.73 : x
  2. Step 2: Convert to fraction form
    11,495.83/17,143.14 = 11,390.73/x
  3. Step 3: Cross multiply
    11,495.83x = 17,143.14 × 11,390.73
  4. Step 4: Simplify right side
    11,495.83x = 195,272,879.09
  5. Step 5: Solve for x
    x = 195,272,879.09/11,495.83
  6. Step 6: Final answer
    x = 16,986.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.