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Finding the Fourth Proportional to 1,967.09, 2,951.15 and 734.51

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Solution

The fourth proportional to 1,967.09, 2,951.15 and 734.51 is: 1,101.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,967.09 : 2,951.15 = 734.51 : x
  2. Step 2: Convert to fraction form
    1,967.09/2,951.15 = 734.51/x
  3. Step 3: Cross multiply
    1,967.09x = 2,951.15 × 734.51
  4. Step 4: Simplify right side
    1,967.09x = 2,167,652.89
  5. Step 5: Solve for x
    x = 2,167,652.89/1,967.09
  6. Step 6: Final answer
    x = 1,101.96

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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.