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Finding the Fourth Proportional to 1,735.11, 2,602.55 and 760.88

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Solution

The fourth proportional to 1,735.11, 2,602.55 and 760.88 is: 1,141.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,735.11 : 2,602.55 = 760.88 : x
  2. Step 2: Convert to fraction form
    1,735.11/2,602.55 = 760.88/x
  3. Step 3: Cross multiply
    1,735.11x = 2,602.55 × 760.88
  4. Step 4: Simplify right side
    1,735.11x = 1,980,211.43
  5. Step 5: Solve for x
    x = 1,980,211.43/1,735.11
  6. Step 6: Final answer
    x = 1,141.26

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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.