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Finding the Fourth Proportional to 11,446.90, 17,137.92 and 7,276.54

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Solution

The fourth proportional to 11,446.90, 17,137.92 and 7,276.54 is: 10,894.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,446.90 : 17,137.92 = 7,276.54 : x
  2. Step 2: Convert to fraction form
    11,446.90/17,137.92 = 7,276.54/x
  3. Step 3: Cross multiply
    11,446.90x = 17,137.92 × 7,276.54
  4. Step 4: Simplify right side
    11,446.90x = 124,704,760.40
  5. Step 5: Solve for x
    x = 124,704,760.40/11,446.90
  6. Step 6: Final answer
    x = 10,894.19

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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.