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Finding the Fourth Proportional to 3,907.43, 5,392.62 and 2,335.49

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Solution

The fourth proportional to 3,907.43, 5,392.62 and 2,335.49 is: 3,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,907.43 : 5,392.62 = 2,335.49 : x
  2. Step 2: Convert to fraction form
    3,907.43/5,392.62 = 2,335.49/x
  3. Step 3: Cross multiply
    3,907.43x = 5,392.62 × 2,335.49
  4. Step 4: Simplify right side
    3,907.43x = 12,594,410.08
  5. Step 5: Solve for x
    x = 12,594,410.08/3,907.43
  6. Step 6: Final answer
    x = 3,223.20

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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.