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Finding the Fourth Proportional to 3,809.53, 5,714.41 and 1,346.05

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Solution

The fourth proportional to 3,809.53, 5,714.41 and 1,346.05 is: 2,019.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.53 : 5,714.41 = 1,346.05 : x
  2. Step 2: Convert to fraction form
    3,809.53/5,714.41 = 1,346.05/x
  3. Step 3: Cross multiply
    3,809.53x = 5,714.41 × 1,346.05
  4. Step 4: Simplify right side
    3,809.53x = 7,691,881.58
  5. Step 5: Solve for x
    x = 7,691,881.58/3,809.53
  6. Step 6: Final answer
    x = 2,019.12

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1.5x scale

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.