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Finding the Fourth Proportional to 25,810.88, 38,711.44 and 10,015.88

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Solution

The fourth proportional to 25,810.88, 38,711.44 and 10,015.88 is: 15,021.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,810.88 : 38,711.44 = 10,015.88 : x
  2. Step 2: Convert to fraction form
    25,810.88/38,711.44 = 10,015.88/x
  3. Step 3: Cross multiply
    25,810.88x = 38,711.44 × 10,015.88
  4. Step 4: Simplify right side
    25,810.88x = 387,729,137.67
  5. Step 5: Solve for x
    x = 387,729,137.67/25,810.88
  6. Step 6: Final answer
    x = 15,021.93

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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.