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Finding the Fourth Proportional to 3,809.08, 5,714.30 and 1,345.33

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Solution

The fourth proportional to 3,809.08, 5,714.30 and 1,345.33 is: 2,018.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.08 : 5,714.30 = 1,345.33 : x
  2. Step 2: Convert to fraction form
    3,809.08/5,714.30 = 1,345.33/x
  3. Step 3: Cross multiply
    3,809.08x = 5,714.30 × 1,345.33
  4. Step 4: Simplify right side
    3,809.08x = 7,687,619.22
  5. Step 5: Solve for x
    x = 7,687,619.22/3,809.08
  6. Step 6: Final answer
    x = 2,018.24

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.