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Finding the Fourth Proportional to 62,831.97, 86,708.40 and 34,539.48

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Solution

The fourth proportional to 62,831.97, 86,708.40 and 34,539.48 is: 47,664.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,831.97 : 86,708.40 = 34,539.48 : x
  2. Step 2: Convert to fraction form
    62,831.97/86,708.40 = 34,539.48/x
  3. Step 3: Cross multiply
    62,831.97x = 86,708.40 × 34,539.48
  4. Step 4: Simplify right side
    62,831.97x = 2,994,863,047.63
  5. Step 5: Solve for x
    x = 2,994,863,047.63/62,831.97
  6. Step 6: Final answer
    x = 47,664.64

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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.