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Finding the Fourth Proportional to 3,610.51, 4,981.02 and 2,431.96

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Solution

The fourth proportional to 3,610.51, 4,981.02 and 2,431.96 is: 3,355.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.51 : 4,981.02 = 2,431.96 : x
  2. Step 2: Convert to fraction form
    3,610.51/4,981.02 = 2,431.96/x
  3. Step 3: Cross multiply
    3,610.51x = 4,981.02 × 2,431.96
  4. Step 4: Simplify right side
    3,610.51x = 12,113,641.40
  5. Step 5: Solve for x
    x = 12,113,641.40/3,610.51
  6. Step 6: Final answer
    x = 3,355.11

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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.