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Finding the Fourth Proportional to 3,743.39, 5,615.06 and 969.82

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Solution

The fourth proportional to 3,743.39, 5,615.06 and 969.82 is: 1,454.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,743.39 : 5,615.06 = 969.82 : x
  2. Step 2: Convert to fraction form
    3,743.39/5,615.06 = 969.82/x
  3. Step 3: Cross multiply
    3,743.39x = 5,615.06 × 969.82
  4. Step 4: Simplify right side
    3,743.39x = 5,445,597.49
  5. Step 5: Solve for x
    x = 5,445,597.49/3,743.39
  6. Step 6: Final answer
    x = 1,454.73

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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.