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Finding the Fourth Proportional to 3,476.03, 5,215.02 and 1,397.49

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Solution

The fourth proportional to 3,476.03, 5,215.02 and 1,397.49 is: 2,096.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,476.03 : 5,215.02 = 1,397.49 : x
  2. Step 2: Convert to fraction form
    3,476.03/5,215.02 = 1,397.49/x
  3. Step 3: Cross multiply
    3,476.03x = 5,215.02 × 1,397.49
  4. Step 4: Simplify right side
    3,476.03x = 7,287,938.30
  5. Step 5: Solve for x
    x = 7,287,938.30/3,476.03
  6. Step 6: Final answer
    x = 2,096.63

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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.