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Finding the Fourth Proportional to 19,059.39, 28,591.88 and 7,217.52

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Solution

The fourth proportional to 19,059.39, 28,591.88 and 7,217.52 is: 10,827.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,059.39 : 28,591.88 = 7,217.52 : x
  2. Step 2: Convert to fraction form
    19,059.39/28,591.88 = 7,217.52/x
  3. Step 3: Cross multiply
    19,059.39x = 28,591.88 × 7,217.52
  4. Step 4: Simplify right side
    19,059.39x = 206,362,429.65
  5. Step 5: Solve for x
    x = 206,362,429.65/19,059.39
  6. Step 6: Final answer
    x = 10,827.34

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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.