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Finding the Fourth Proportional to 4,881.52, 7,325.93 and 3,919.24

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Solution

The fourth proportional to 4,881.52, 7,325.93 and 3,919.24 is: 5,881.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,881.52 : 7,325.93 = 3,919.24 : x
  2. Step 2: Convert to fraction form
    4,881.52/7,325.93 = 3,919.24/x
  3. Step 3: Cross multiply
    4,881.52x = 7,325.93 × 3,919.24
  4. Step 4: Simplify right side
    4,881.52x = 28,712,077.89
  5. Step 5: Solve for x
    x = 28,712,077.89/4,881.52
  6. Step 6: Final answer
    x = 5,881.79

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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.