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Finding the Fourth Proportional to 22,407.23, 30,932.48 and 12,973.97

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Solution

The fourth proportional to 22,407.23, 30,932.48 and 12,973.97 is: 17,910.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,407.23 : 30,932.48 = 12,973.97 : x
  2. Step 2: Convert to fraction form
    22,407.23/30,932.48 = 12,973.97/x
  3. Step 3: Cross multiply
    22,407.23x = 30,932.48 × 12,973.97
  4. Step 4: Simplify right side
    22,407.23x = 401,317,067.55
  5. Step 5: Solve for x
    x = 401,317,067.55/22,407.23
  6. Step 6: Final answer
    x = 17,910.16

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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.