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Finding the Fourth Proportional to 27,672.66, 38,092.23 and 20,946.42

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Solution

The fourth proportional to 27,672.66, 38,092.23 and 20,946.42 is: 28,833.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,672.66 : 38,092.23 = 20,946.42 : x
  2. Step 2: Convert to fraction form
    27,672.66/38,092.23 = 20,946.42/x
  3. Step 3: Cross multiply
    27,672.66x = 38,092.23 × 20,946.42
  4. Step 4: Simplify right side
    27,672.66x = 797,895,848.32
  5. Step 5: Solve for x
    x = 797,895,848.32/27,672.66
  6. Step 6: Final answer
    x = 28,833.36

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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.