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Finding the Fourth Proportional to 1,735.62, 2,602.02 and 1,188.87

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Solution

The fourth proportional to 1,735.62, 2,602.02 and 1,188.87 is: 1,782.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,735.62 : 2,602.02 = 1,188.87 : x
  2. Step 2: Convert to fraction form
    1,735.62/2,602.02 = 1,188.87/x
  3. Step 3: Cross multiply
    1,735.62x = 2,602.02 × 1,188.87
  4. Step 4: Simplify right side
    1,735.62x = 3,093,463.52
  5. Step 5: Solve for x
    x = 3,093,463.52/1,735.62
  6. Step 6: Final answer
    x = 1,782.34

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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.