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Finding the Fourth Proportional to 2,047.75, 3,071.08 and 586.55

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Solution

The fourth proportional to 2,047.75, 3,071.08 and 586.55 is: 879.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,047.75 : 3,071.08 = 586.55 : x
  2. Step 2: Convert to fraction form
    2,047.75/3,071.08 = 586.55/x
  3. Step 3: Cross multiply
    2,047.75x = 3,071.08 × 586.55
  4. Step 4: Simplify right side
    2,047.75x = 1,801,350.38
  5. Step 5: Solve for x
    x = 1,801,350.38/2,047.75
  6. Step 6: Final answer
    x = 879.67

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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.