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Finding the Fourth Proportional to 1,173.69, 1,759.05 and 1,027.08

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Solution

The fourth proportional to 1,173.69, 1,759.05 and 1,027.08 is: 1,539.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173.69 : 1,759.05 = 1,027.08 : x
  2. Step 2: Convert to fraction form
    1,173.69/1,759.05 = 1,027.08/x
  3. Step 3: Cross multiply
    1,173.69x = 1,759.05 × 1,027.08
  4. Step 4: Simplify right side
    1,173.69x = 1,806,685.07
  5. Step 5: Solve for x
    x = 1,806,685.07/1,173.69
  6. Step 6: Final answer
    x = 1,539.32

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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.