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Finding the Fourth Proportional to 6,985.85, 10,481.03 and 2,055.51

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Solution

The fourth proportional to 6,985.85, 10,481.03 and 2,055.51 is: 3,083.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985.85 : 10,481.03 = 2,055.51 : x
  2. Step 2: Convert to fraction form
    6,985.85/10,481.03 = 2,055.51/x
  3. Step 3: Cross multiply
    6,985.85x = 10,481.03 × 2,055.51
  4. Step 4: Simplify right side
    6,985.85x = 21,543,893.32
  5. Step 5: Solve for x
    x = 21,543,893.32/6,985.85
  6. Step 6: Final answer
    x = 3,083.93

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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.