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Finding the Fourth Proportional to 4,649.85, 6,975.42 and 1,362.47

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Solution

The fourth proportional to 4,649.85, 6,975.42 and 1,362.47 is: 2,043.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,649.85 : 6,975.42 = 1,362.47 : x
  2. Step 2: Convert to fraction form
    4,649.85/6,975.42 = 1,362.47/x
  3. Step 3: Cross multiply
    4,649.85x = 6,975.42 × 1,362.47
  4. Step 4: Simplify right side
    4,649.85x = 9,503,800.49
  5. Step 5: Solve for x
    x = 9,503,800.49/4,649.85
  6. Step 6: Final answer
    x = 2,043.89

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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.