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Finding the Fourth Proportional to 3,810.45, 5,712.99 and 1,468.50

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Solution

The fourth proportional to 3,810.45, 5,712.99 and 1,468.50 is: 2,201.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.45 : 5,712.99 = 1,468.50 : x
  2. Step 2: Convert to fraction form
    3,810.45/5,712.99 = 1,468.50/x
  3. Step 3: Cross multiply
    3,810.45x = 5,712.99 × 1,468.50
  4. Step 4: Simplify right side
    3,810.45x = 8,389,525.82
  5. Step 5: Solve for x
    x = 8,389,525.82/3,810.45
  6. Step 6: Final answer
    x = 2,201.72

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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.