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Finding the Fourth Proportional to 1,469.68, 2,026.38 and 1,270.15

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Solution

The fourth proportional to 1,469.68, 2,026.38 and 1,270.15 is: 1,751.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,469.68 : 2,026.38 = 1,270.15 : x
  2. Step 2: Convert to fraction form
    1,469.68/2,026.38 = 1,270.15/x
  3. Step 3: Cross multiply
    1,469.68x = 2,026.38 × 1,270.15
  4. Step 4: Simplify right side
    1,469.68x = 2,573,796.43
  5. Step 5: Solve for x
    x = 2,573,796.43/1,469.68
  6. Step 6: Final answer
    x = 1,751.27

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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.