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Finding the Fourth Proportional to 19,008.63, 28,485.12 and 10,704.84

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Solution

The fourth proportional to 19,008.63, 28,485.12 and 10,704.84 is: 16,041.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008.63 : 28,485.12 = 10,704.84 : x
  2. Step 2: Convert to fraction form
    19,008.63/28,485.12 = 10,704.84/x
  3. Step 3: Cross multiply
    19,008.63x = 28,485.12 × 10,704.84
  4. Step 4: Simplify right side
    19,008.63x = 304,928,651.98
  5. Step 5: Solve for x
    x = 304,928,651.98/19,008.63
  6. Step 6: Final answer
    x = 16,041.59

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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.