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Finding the Fourth Proportional to 5,109.30, 7,662.87 and 1,822.59

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Solution

The fourth proportional to 5,109.30, 7,662.87 and 1,822.59 is: 2,733.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.30 : 7,662.87 = 1,822.59 : x
  2. Step 2: Convert to fraction form
    5,109.30/7,662.87 = 1,822.59/x
  3. Step 3: Cross multiply
    5,109.30x = 7,662.87 × 1,822.59
  4. Step 4: Simplify right side
    5,109.30x = 13,966,270.23
  5. Step 5: Solve for x
    x = 13,966,270.23/5,109.30
  6. Step 6: Final answer
    x = 2,733.50

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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.