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Finding the Fourth Proportional to 4,167.99, 5,747.09 and 3,913.79

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Solution

The fourth proportional to 4,167.99, 5,747.09 and 3,913.79 is: 5,396.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,167.99 : 5,747.09 = 3,913.79 : x
  2. Step 2: Convert to fraction form
    4,167.99/5,747.09 = 3,913.79/x
  3. Step 3: Cross multiply
    4,167.99x = 5,747.09 × 3,913.79
  4. Step 4: Simplify right side
    4,167.99x = 22,492,855.07
  5. Step 5: Solve for x
    x = 22,492,855.07/4,167.99
  6. Step 6: Final answer
    x = 5,396.57

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1.5x scale

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.