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Finding the Fourth Proportional to 4,172.54, 5,758 and 2,309.54

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Solution

The fourth proportional to 4,172.54, 5,758 and 2,309.54 is: 3,187.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.54 : 5,758 = 2,309.54 : x
  2. Step 2: Convert to fraction form
    4,172.54/5,758 = 2,309.54/x
  3. Step 3: Cross multiply
    4,172.54x = 5,758 × 2,309.54
  4. Step 4: Simplify right side
    4,172.54x = 13,298,331.32
  5. Step 5: Solve for x
    x = 13,298,331.32/4,172.54
  6. Step 6: Final answer
    x = 3,187.11

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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.