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Finding the Fourth Proportional to 2,927.32, 4,391.12 and 736.07

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Solution

The fourth proportional to 2,927.32, 4,391.12 and 736.07 is: 1,104.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927.32 : 4,391.12 = 736.07 : x
  2. Step 2: Convert to fraction form
    2,927.32/4,391.12 = 736.07/x
  3. Step 3: Cross multiply
    2,927.32x = 4,391.12 × 736.07
  4. Step 4: Simplify right side
    2,927.32x = 3,232,171.70
  5. Step 5: Solve for x
    x = 3,232,171.70/2,927.32
  6. Step 6: Final answer
    x = 1,104.14

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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.