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Finding the Fourth Proportional to 2,863.98, 3,953.07 and 2,345.58

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Solution

The fourth proportional to 2,863.98, 3,953.07 and 2,345.58 is: 3,237.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863.98 : 3,953.07 = 2,345.58 : x
  2. Step 2: Convert to fraction form
    2,863.98/3,953.07 = 2,345.58/x
  3. Step 3: Cross multiply
    2,863.98x = 3,953.07 × 2,345.58
  4. Step 4: Simplify right side
    2,863.98x = 9,272,241.93
  5. Step 5: Solve for x
    x = 9,272,241.93/2,863.98
  6. Step 6: Final answer
    x = 3,237.54

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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.