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Finding the Fourth Proportional to 30,855.72, 46,288.11 and 9,788.73

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Solution

The fourth proportional to 30,855.72, 46,288.11 and 9,788.73 is: 14,684.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,855.72 : 46,288.11 = 9,788.73 : x
  2. Step 2: Convert to fraction form
    30,855.72/46,288.11 = 9,788.73/x
  3. Step 3: Cross multiply
    30,855.72x = 46,288.11 × 9,788.73
  4. Step 4: Simplify right side
    30,855.72x = 453,101,811.00
  5. Step 5: Solve for x
    x = 453,101,811.00/30,855.72
  6. Step 6: Final answer
    x = 14,684.53

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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.