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Finding the Fourth Proportional to 3,167.69, 4,751.55 and 1,868.25

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Solution

The fourth proportional to 3,167.69, 4,751.55 and 1,868.25 is: 2,802.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.69 : 4,751.55 = 1,868.25 : x
  2. Step 2: Convert to fraction form
    3,167.69/4,751.55 = 1,868.25/x
  3. Step 3: Cross multiply
    3,167.69x = 4,751.55 × 1,868.25
  4. Step 4: Simplify right side
    3,167.69x = 8,877,083.29
  5. Step 5: Solve for x
    x = 8,877,083.29/3,167.69
  6. Step 6: Final answer
    x = 2,802.38

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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.