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Finding the Fourth Proportional to 2,907.91, 4,367.45 and 2,492.38

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Solution

The fourth proportional to 2,907.91, 4,367.45 and 2,492.38 is: 3,743.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.91 : 4,367.45 = 2,492.38 : x
  2. Step 2: Convert to fraction form
    2,907.91/4,367.45 = 2,492.38/x
  3. Step 3: Cross multiply
    2,907.91x = 4,367.45 × 2,492.38
  4. Step 4: Simplify right side
    2,907.91x = 10,885,323.19
  5. Step 5: Solve for x
    x = 10,885,323.19/2,907.91
  6. Step 6: Final answer
    x = 3,743.36

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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.