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Finding the Fourth Proportional to 3,603.87, 4,971.62 and 2,110.86

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Solution

The fourth proportional to 3,603.87, 4,971.62 and 2,110.86 is: 2,911.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.87 : 4,971.62 = 2,110.86 : x
  2. Step 2: Convert to fraction form
    3,603.87/4,971.62 = 2,110.86/x
  3. Step 3: Cross multiply
    3,603.87x = 4,971.62 × 2,110.86
  4. Step 4: Simplify right side
    3,603.87x = 10,494,383.24
  5. Step 5: Solve for x
    x = 10,494,383.24/3,603.87
  6. Step 6: Final answer
    x = 2,911.98

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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.