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Finding the Fourth Proportional to 5,360.76, 8,042.10 and 1,662.36

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Solution

The fourth proportional to 5,360.76, 8,042.10 and 1,662.36 is: 2,493.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,360.76 : 8,042.10 = 1,662.36 : x
  2. Step 2: Convert to fraction form
    5,360.76/8,042.10 = 1,662.36/x
  3. Step 3: Cross multiply
    5,360.76x = 8,042.10 × 1,662.36
  4. Step 4: Simplify right side
    5,360.76x = 13,368,865.36
  5. Step 5: Solve for x
    x = 13,368,865.36/5,360.76
  6. Step 6: Final answer
    x = 2,493.84

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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.