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Finding the Fourth Proportional to 5,174.70, 7,762.04 and 1,711.95

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Solution

The fourth proportional to 5,174.70, 7,762.04 and 1,711.95 is: 2,567.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.70 : 7,762.04 = 1,711.95 : x
  2. Step 2: Convert to fraction form
    5,174.70/7,762.04 = 1,711.95/x
  3. Step 3: Cross multiply
    5,174.70x = 7,762.04 × 1,711.95
  4. Step 4: Simplify right side
    5,174.70x = 13,288,224.38
  5. Step 5: Solve for x
    x = 13,288,224.38/5,174.70
  6. Step 6: Final answer
    x = 2,567.92

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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.