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Finding the Fourth Proportional to 25,687.37, 38,534.13 and 10,894.37

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Solution

The fourth proportional to 25,687.37, 38,534.13 and 10,894.37 is: 16,342.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,687.37 : 38,534.13 = 10,894.37 : x
  2. Step 2: Convert to fraction form
    25,687.37/38,534.13 = 10,894.37/x
  3. Step 3: Cross multiply
    25,687.37x = 38,534.13 × 10,894.37
  4. Step 4: Simplify right side
    25,687.37x = 419,804,877.18
  5. Step 5: Solve for x
    x = 419,804,877.18/25,687.37
  6. Step 6: Final answer
    x = 16,342.85

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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.