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Finding the Fourth Proportional to 30,680.99, 46,022.06 and 9,620.57

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Solution

The fourth proportional to 30,680.99, 46,022.06 and 9,620.57 is: 14,431.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,680.99 : 46,022.06 = 9,620.57 : x
  2. Step 2: Convert to fraction form
    30,680.99/46,022.06 = 9,620.57/x
  3. Step 3: Cross multiply
    30,680.99x = 46,022.06 × 9,620.57
  4. Step 4: Simplify right side
    30,680.99x = 442,758,449.77
  5. Step 5: Solve for x
    x = 442,758,449.77/30,680.99
  6. Step 6: Final answer
    x = 14,431.03

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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.