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Finding the Fourth Proportional to 3,473.94, 5,212.26 and 1,831.80

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Solution

The fourth proportional to 3,473.94, 5,212.26 and 1,831.80 is: 2,748.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,473.94 : 5,212.26 = 1,831.80 : x
  2. Step 2: Convert to fraction form
    3,473.94/5,212.26 = 1,831.80/x
  3. Step 3: Cross multiply
    3,473.94x = 5,212.26 × 1,831.80
  4. Step 4: Simplify right side
    3,473.94x = 9,547,817.87
  5. Step 5: Solve for x
    x = 9,547,817.87/3,473.94
  6. Step 6: Final answer
    x = 2,748.41

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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.