Home / 25,849.26-38,772.56-7,129.46

Finding the Fourth Proportional to 25,849.26, 38,772.56 and 7,129.46

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Solution

The fourth proportional to 25,849.26, 38,772.56 and 7,129.46 is: 10,693.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,849.26 : 38,772.56 = 7,129.46 : x
  2. Step 2: Convert to fraction form
    25,849.26/38,772.56 = 7,129.46/x
  3. Step 3: Cross multiply
    25,849.26x = 38,772.56 × 7,129.46
  4. Step 4: Simplify right side
    25,849.26x = 276,427,186.11
  5. Step 5: Solve for x
    x = 276,427,186.11/25,849.26
  6. Step 6: Final answer
    x = 10,693.81

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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.