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Finding the Fourth Proportional to 22,394.67, 30,905.51 and 13,446.19

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Solution

The fourth proportional to 22,394.67, 30,905.51 and 13,446.19 is: 18,556.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,394.67 : 30,905.51 = 13,446.19 : x
  2. Step 2: Convert to fraction form
    22,394.67/30,905.51 = 13,446.19/x
  3. Step 3: Cross multiply
    22,394.67x = 30,905.51 × 13,446.19
  4. Step 4: Simplify right side
    22,394.67x = 415,561,359.51
  5. Step 5: Solve for x
    x = 415,561,359.51/22,394.67
  6. Step 6: Final answer
    x = 18,556.26

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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.