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Finding the Fourth Proportional to 19,189.56, 28,784.52 and 6,709.56

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Solution

The fourth proportional to 19,189.56, 28,784.52 and 6,709.56 is: 10,064.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,189.56 : 28,784.52 = 6,709.56 : x
  2. Step 2: Convert to fraction form
    19,189.56/28,784.52 = 6,709.56/x
  3. Step 3: Cross multiply
    19,189.56x = 28,784.52 × 6,709.56
  4. Step 4: Simplify right side
    19,189.56x = 193,131,464.01
  5. Step 5: Solve for x
    x = 193,131,464.01/19,189.56
  6. Step 6: Final answer
    x = 10,064.40

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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.