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Finding the Fourth Proportional to 1,735.64, 2,395.10 and 1,072.55

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Solution

The fourth proportional to 1,735.64, 2,395.10 and 1,072.55 is: 1,480.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,735.64 : 2,395.10 = 1,072.55 : x
  2. Step 2: Convert to fraction form
    1,735.64/2,395.10 = 1,072.55/x
  3. Step 3: Cross multiply
    1,735.64x = 2,395.10 × 1,072.55
  4. Step 4: Simplify right side
    1,735.64x = 2,568,865.13
  5. Step 5: Solve for x
    x = 2,568,865.13/1,735.64
  6. Step 6: Final answer
    x = 1,480.07

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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.