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Finding the Fourth Proportional to 1,584.26, 2,376.03 and 762.11

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Solution

The fourth proportional to 1,584.26, 2,376.03 and 762.11 is: 1,142.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,584.26 : 2,376.03 = 762.11 : x
  2. Step 2: Convert to fraction form
    1,584.26/2,376.03 = 762.11/x
  3. Step 3: Cross multiply
    1,584.26x = 2,376.03 × 762.11
  4. Step 4: Simplify right side
    1,584.26x = 1,810,796.22
  5. Step 5: Solve for x
    x = 1,810,796.22/1,584.26
  6. Step 6: Final answer
    x = 1,142.99

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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.