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Finding the Fourth Proportional to 4,395.16, 6,591.99 and 1,929.31

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Solution

The fourth proportional to 4,395.16, 6,591.99 and 1,929.31 is: 2,893.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,395.16 : 6,591.99 = 1,929.31 : x
  2. Step 2: Convert to fraction form
    4,395.16/6,591.99 = 1,929.31/x
  3. Step 3: Cross multiply
    4,395.16x = 6,591.99 × 1,929.31
  4. Step 4: Simplify right side
    4,395.16x = 12,717,992.23
  5. Step 5: Solve for x
    x = 12,717,992.23/4,395.16
  6. Step 6: Final answer
    x = 2,893.64

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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.