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Finding the Fourth Proportional to 22,291.22, 30,765.03 and 13,796.08

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Solution

The fourth proportional to 22,291.22, 30,765.03 and 13,796.08 is: 19,040.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,291.22 : 30,765.03 = 13,796.08 : x
  2. Step 2: Convert to fraction form
    22,291.22/30,765.03 = 13,796.08/x
  3. Step 3: Cross multiply
    22,291.22x = 30,765.03 × 13,796.08
  4. Step 4: Simplify right side
    22,291.22x = 424,436,815.08
  5. Step 5: Solve for x
    x = 424,436,815.08/22,291.22
  6. Step 6: Final answer
    x = 19,040.54

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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.