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Finding the Fourth Proportional to 7,823.79, 10,796.83 and 4,286.99

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Solution

The fourth proportional to 7,823.79, 10,796.83 and 4,286.99 is: 5,916.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,823.79 : 10,796.83 = 4,286.99 : x
  2. Step 2: Convert to fraction form
    7,823.79/10,796.83 = 4,286.99/x
  3. Step 3: Cross multiply
    7,823.79x = 10,796.83 × 4,286.99
  4. Step 4: Simplify right side
    7,823.79x = 46,285,918.52
  5. Step 5: Solve for x
    x = 46,285,918.52/7,823.79
  6. Step 6: Final answer
    x = 5,916.05

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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.