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Finding the Fourth Proportional to 2,047.41, 3,071.43 and 731.07

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Solution

The fourth proportional to 2,047.41, 3,071.43 and 731.07 is: 1,096.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,047.41 : 3,071.43 = 731.07 : x
  2. Step 2: Convert to fraction form
    2,047.41/3,071.43 = 731.07/x
  3. Step 3: Cross multiply
    2,047.41x = 3,071.43 × 731.07
  4. Step 4: Simplify right side
    2,047.41x = 2,245,430.33
  5. Step 5: Solve for x
    x = 2,245,430.33/2,047.41
  6. Step 6: Final answer
    x = 1,096.72

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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.