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Finding the Fourth Proportional to 8,760.99, 13,142.97 and 3,830.52

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Solution

The fourth proportional to 8,760.99, 13,142.97 and 3,830.52 is: 5,746.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.99 : 13,142.97 = 3,830.52 : x
  2. Step 2: Convert to fraction form
    8,760.99/13,142.97 = 3,830.52/x
  3. Step 3: Cross multiply
    8,760.99x = 13,142.97 × 3,830.52
  4. Step 4: Simplify right side
    8,760.99x = 50,344,409.44
  5. Step 5: Solve for x
    x = 50,344,409.44/8,760.99
  6. Step 6: Final answer
    x = 5,746.43

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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.