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Finding the Fourth Proportional to 25,831.70, 38,736.02 and 7,359.38

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Solution

The fourth proportional to 25,831.70, 38,736.02 and 7,359.38 is: 11,035.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,831.70 : 38,736.02 = 7,359.38 : x
  2. Step 2: Convert to fraction form
    25,831.70/38,736.02 = 7,359.38/x
  3. Step 3: Cross multiply
    25,831.70x = 38,736.02 × 7,359.38
  4. Step 4: Simplify right side
    25,831.70x = 285,073,090.87
  5. Step 5: Solve for x
    x = 285,073,090.87/25,831.70
  6. Step 6: Final answer
    x = 11,035.79

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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.