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Finding the Fourth Proportional to 30,992.99, 46,489.41 and 8,806.59

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Solution

The fourth proportional to 30,992.99, 46,489.41 and 8,806.59 is: 13,209.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,992.99 : 46,489.41 = 8,806.59 : x
  2. Step 2: Convert to fraction form
    30,992.99/46,489.41 = 8,806.59/x
  3. Step 3: Cross multiply
    30,992.99x = 46,489.41 × 8,806.59
  4. Step 4: Simplify right side
    30,992.99x = 409,413,173.21
  5. Step 5: Solve for x
    x = 409,413,173.21/30,992.99
  6. Step 6: Final answer
    x = 13,209.87

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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.