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Finding the Fourth Proportional to 5,265.70, 7,266.44 and 2,907.80

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Solution

The fourth proportional to 5,265.70, 7,266.44 and 2,907.80 is: 4,012.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,265.70 : 7,266.44 = 2,907.80 : x
  2. Step 2: Convert to fraction form
    5,265.70/7,266.44 = 2,907.80/x
  3. Step 3: Cross multiply
    5,265.70x = 7,266.44 × 2,907.80
  4. Step 4: Simplify right side
    5,265.70x = 21,129,354.23
  5. Step 5: Solve for x
    x = 21,129,354.23/5,265.70
  6. Step 6: Final answer
    x = 4,012.64

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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.