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Finding the Fourth Proportional to 3,425.23, 4,718.62 and 3,258.48

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Solution

The fourth proportional to 3,425.23, 4,718.62 and 3,258.48 is: 4,488.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.23 : 4,718.62 = 3,258.48 : x
  2. Step 2: Convert to fraction form
    3,425.23/4,718.62 = 3,258.48/x
  3. Step 3: Cross multiply
    3,425.23x = 4,718.62 × 3,258.48
  4. Step 4: Simplify right side
    3,425.23x = 15,375,528.90
  5. Step 5: Solve for x
    x = 15,375,528.90/3,425.23
  6. Step 6: Final answer
    x = 4,488.90

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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.