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Finding the Fourth Proportional to 7,963.99, 11,927.77 and 3,806.93

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Solution

The fourth proportional to 7,963.99, 11,927.77 and 3,806.93 is: 5,701.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,963.99 : 11,927.77 = 3,806.93 : x
  2. Step 2: Convert to fraction form
    7,963.99/11,927.77 = 3,806.93/x
  3. Step 3: Cross multiply
    7,963.99x = 11,927.77 × 3,806.93
  4. Step 4: Simplify right side
    7,963.99x = 45,408,185.45
  5. Step 5: Solve for x
    x = 45,408,185.45/7,963.99
  6. Step 6: Final answer
    x = 5,701.69

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1.5x scale

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.