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Finding the Fourth Proportional to 17,625.74, 26,447.22 and 7,763.79

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Solution

The fourth proportional to 17,625.74, 26,447.22 and 7,763.79 is: 11,649.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,625.74 : 26,447.22 = 7,763.79 : x
  2. Step 2: Convert to fraction form
    17,625.74/26,447.22 = 7,763.79/x
  3. Step 3: Cross multiply
    17,625.74x = 26,447.22 × 7,763.79
  4. Step 4: Simplify right side
    17,625.74x = 205,330,662.16
  5. Step 5: Solve for x
    x = 205,330,662.16/17,625.74
  6. Step 6: Final answer
    x = 11,649.48

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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.