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Finding the Fourth Proportional to 19,279.96, 26,604.96 and 11,321.10

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Solution

The fourth proportional to 19,279.96, 26,604.96 and 11,321.10 is: 15,622.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,279.96 : 26,604.96 = 11,321.10 : x
  2. Step 2: Convert to fraction form
    19,279.96/26,604.96 = 11,321.10/x
  3. Step 3: Cross multiply
    19,279.96x = 26,604.96 × 11,321.10
  4. Step 4: Simplify right side
    19,279.96x = 301,197,370.20
  5. Step 5: Solve for x
    x = 301,197,370.20/19,279.96
  6. Step 6: Final answer
    x = 15,622.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.