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Finding the Fourth Proportional to 25,831.89, 38,754.36 and 7,363.89

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Solution

The fourth proportional to 25,831.89, 38,754.36 and 7,363.89 is: 11,047.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,831.89 : 38,754.36 = 7,363.89 : x
  2. Step 2: Convert to fraction form
    25,831.89/38,754.36 = 7,363.89/x
  3. Step 3: Cross multiply
    25,831.89x = 38,754.36 × 7,363.89
  4. Step 4: Simplify right side
    25,831.89x = 285,382,844.06
  5. Step 5: Solve for x
    x = 285,382,844.06/25,831.89
  6. Step 6: Final answer
    x = 11,047.70

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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.