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Finding the Fourth Proportional to 1,170.03, 1,754.33 and 1,059.15

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Solution

The fourth proportional to 1,170.03, 1,754.33 and 1,059.15 is: 1,588.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170.03 : 1,754.33 = 1,059.15 : x
  2. Step 2: Convert to fraction form
    1,170.03/1,754.33 = 1,059.15/x
  3. Step 3: Cross multiply
    1,170.03x = 1,754.33 × 1,059.15
  4. Step 4: Simplify right side
    1,170.03x = 1,858,093.32
  5. Step 5: Solve for x
    x = 1,858,093.32/1,170.03
  6. Step 6: Final answer
    x = 1,588.07

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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.