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Finding the Fourth Proportional to 3,809.92, 5,256.21 and 2,393.02

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Solution

The fourth proportional to 3,809.92, 5,256.21 and 2,393.02 is: 3,301.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.92 : 5,256.21 = 2,393.02 : x
  2. Step 2: Convert to fraction form
    3,809.92/5,256.21 = 2,393.02/x
  3. Step 3: Cross multiply
    3,809.92x = 5,256.21 × 2,393.02
  4. Step 4: Simplify right side
    3,809.92x = 12,578,215.65
  5. Step 5: Solve for x
    x = 12,578,215.65/3,809.92
  6. Step 6: Final answer
    x = 3,301.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.