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Finding the Fourth Proportional to 34,831.54, 48,067.53 and 18,916

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Solution

The fourth proportional to 34,831.54, 48,067.53 and 18,916 is: 26,104.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,831.54 : 48,067.53 = 18,916 : x
  2. Step 2: Convert to fraction form
    34,831.54/48,067.53 = 18,916/x
  3. Step 3: Cross multiply
    34,831.54x = 48,067.53 × 18,916
  4. Step 4: Simplify right side
    34,831.54x = 909,245,397.48
  5. Step 5: Solve for x
    x = 909,245,397.48/34,831.54
  6. Step 6: Final answer
    x = 26,104.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.