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Finding the Fourth Proportional to 4,573.88, 6,860.67 and 1,939.69

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Solution

The fourth proportional to 4,573.88, 6,860.67 and 1,939.69 is: 2,909.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,573.88 : 6,860.67 = 1,939.69 : x
  2. Step 2: Convert to fraction form
    4,573.88/6,860.67 = 1,939.69/x
  3. Step 3: Cross multiply
    4,573.88x = 6,860.67 × 1,939.69
  4. Step 4: Simplify right side
    4,573.88x = 13,307,572.99
  5. Step 5: Solve for x
    x = 13,307,572.99/4,573.88
  6. Step 6: Final answer
    x = 2,909.47

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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.