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Finding the Fourth Proportional to 5,265.86, 7,266.87 and 2,907.99

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Solution

The fourth proportional to 5,265.86, 7,266.87 and 2,907.99 is: 4,013.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,265.86 : 7,266.87 = 2,907.99 : x
  2. Step 2: Convert to fraction form
    5,265.86/7,266.87 = 2,907.99/x
  3. Step 3: Cross multiply
    5,265.86x = 7,266.87 × 2,907.99
  4. Step 4: Simplify right side
    5,265.86x = 21,131,985.29
  5. Step 5: Solve for x
    x = 21,131,985.29/5,265.86
  6. Step 6: Final answer
    x = 4,013.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.