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Finding the Fourth Proportional to 19,203.96, 28,805.90 and 5,352.96

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Solution

The fourth proportional to 19,203.96, 28,805.90 and 5,352.96 is: 8,029.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,203.96 : 28,805.90 = 5,352.96 : x
  2. Step 2: Convert to fraction form
    19,203.96/28,805.90 = 5,352.96/x
  3. Step 3: Cross multiply
    19,203.96x = 28,805.90 × 5,352.96
  4. Step 4: Simplify right side
    19,203.96x = 154,196,803.70
  5. Step 5: Solve for x
    x = 154,196,803.70/19,203.96
  6. Step 6: Final answer
    x = 8,029.43

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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.