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Finding the Fourth Proportional to 1,711.46, 2,567.06 and 671.36

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Solution

The fourth proportional to 1,711.46, 2,567.06 and 671.36 is: 1,006.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.46 : 2,567.06 = 671.36 : x
  2. Step 2: Convert to fraction form
    1,711.46/2,567.06 = 671.36/x
  3. Step 3: Cross multiply
    1,711.46x = 2,567.06 × 671.36
  4. Step 4: Simplify right side
    1,711.46x = 1,723,421.40
  5. Step 5: Solve for x
    x = 1,723,421.40/1,711.46
  6. Step 6: Final answer
    x = 1,006.99

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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.