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Finding the Fourth Proportional to 16,994.64, 25,506.54 and 12,620.64

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Solution

The fourth proportional to 16,994.64, 25,506.54 and 12,620.64 is: 18,941.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,994.64 : 25,506.54 = 12,620.64 : x
  2. Step 2: Convert to fraction form
    16,994.64/25,506.54 = 12,620.64/x
  3. Step 3: Cross multiply
    16,994.64x = 25,506.54 × 12,620.64
  4. Step 4: Simplify right side
    16,994.64x = 321,908,858.99
  5. Step 5: Solve for x
    x = 321,908,858.99/16,994.64
  6. Step 6: Final answer
    x = 18,941.79

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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.