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Finding the Fourth Proportional to 10,907.90, 16,362.01 and 2,699.90

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Solution

The fourth proportional to 10,907.90, 16,362.01 and 2,699.90 is: 4,049.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,907.90 : 16,362.01 = 2,699.90 : x
  2. Step 2: Convert to fraction form
    10,907.90/16,362.01 = 2,699.90/x
  3. Step 3: Cross multiply
    10,907.90x = 16,362.01 × 2,699.90
  4. Step 4: Simplify right side
    10,907.90x = 44,175,790.80
  5. Step 5: Solve for x
    x = 44,175,790.80/10,907.90
  6. Step 6: Final answer
    x = 4,049.89

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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.