Home / 25,848.24-38,773.20-7,129.68

Finding the Fourth Proportional to 25,848.24, 38,773.20 and 7,129.68

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Solution

The fourth proportional to 25,848.24, 38,773.20 and 7,129.68 is: 10,694.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,848.24 : 38,773.20 = 7,129.68 : x
  2. Step 2: Convert to fraction form
    25,848.24/38,773.20 = 7,129.68/x
  3. Step 3: Cross multiply
    25,848.24x = 38,773.20 × 7,129.68
  4. Step 4: Simplify right side
    25,848.24x = 276,440,508.58
  5. Step 5: Solve for x
    x = 276,440,508.58/25,848.24
  6. Step 6: Final answer
    x = 10,694.75

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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.