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Finding the Fourth Proportional to 25,937.58, 38,869.56 and 19,992

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Solution

The fourth proportional to 25,937.58, 38,869.56 and 19,992 is: 29,959.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,937.58 : 38,869.56 = 19,992 : x
  2. Step 2: Convert to fraction form
    25,937.58/38,869.56 = 19,992/x
  3. Step 3: Cross multiply
    25,937.58x = 38,869.56 × 19,992
  4. Step 4: Simplify right side
    25,937.58x = 777,080,243.52
  5. Step 5: Solve for x
    x = 777,080,243.52/25,937.58
  6. Step 6: Final answer
    x = 29,959.63

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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.