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Finding the Fourth Proportional to 3,886.58, 5,362.34 and 2,394.74

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Solution

The fourth proportional to 3,886.58, 5,362.34 and 2,394.74 is: 3,304.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.58 : 5,362.34 = 2,394.74 : x
  2. Step 2: Convert to fraction form
    3,886.58/5,362.34 = 2,394.74/x
  3. Step 3: Cross multiply
    3,886.58x = 5,362.34 × 2,394.74
  4. Step 4: Simplify right side
    3,886.58x = 12,841,410.09
  5. Step 5: Solve for x
    x = 12,841,410.09/3,886.58
  6. Step 6: Final answer
    x = 3,304.04

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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.