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Finding the Fourth Proportional to 1,960.33, 2,705.19 and 1,064.03

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Solution

The fourth proportional to 1,960.33, 2,705.19 and 1,064.03 is: 1,468.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960.33 : 2,705.19 = 1,064.03 : x
  2. Step 2: Convert to fraction form
    1,960.33/2,705.19 = 1,064.03/x
  3. Step 3: Cross multiply
    1,960.33x = 2,705.19 × 1,064.03
  4. Step 4: Simplify right side
    1,960.33x = 2,878,391.78
  5. Step 5: Solve for x
    x = 2,878,391.78/1,960.33
  6. Step 6: Final answer
    x = 1,468.32

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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.