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Finding the Fourth Proportional to 57,831.16, 79,807.62 and 33,958.12

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Solution

The fourth proportional to 57,831.16, 79,807.62 and 33,958.12 is: 46,862.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,831.16 : 79,807.62 = 33,958.12 : x
  2. Step 2: Convert to fraction form
    57,831.16/79,807.62 = 33,958.12/x
  3. Step 3: Cross multiply
    57,831.16x = 79,807.62 × 33,958.12
  4. Step 4: Simplify right side
    57,831.16x = 2,710,116,736.87
  5. Step 5: Solve for x
    x = 2,710,116,736.87/57,831.16
  6. Step 6: Final answer
    x = 46,862.57

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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.