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Finding the Fourth Proportional to 5,375.04, 8,061.48 and 1,911.48

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Solution

The fourth proportional to 5,375.04, 8,061.48 and 1,911.48 is: 2,866.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,375.04 : 8,061.48 = 1,911.48 : x
  2. Step 2: Convert to fraction form
    5,375.04/8,061.48 = 1,911.48/x
  3. Step 3: Cross multiply
    5,375.04x = 8,061.48 × 1,911.48
  4. Step 4: Simplify right side
    5,375.04x = 15,409,357.79
  5. Step 5: Solve for x
    x = 15,409,357.79/5,375.04
  6. Step 6: Final answer
    x = 2,866.84

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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.