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Finding the Fourth Proportional to 19,083.70, 28,631.55 and 9,223.30

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Solution

The fourth proportional to 19,083.70, 28,631.55 and 9,223.30 is: 13,837.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,083.70 : 28,631.55 = 9,223.30 : x
  2. Step 2: Convert to fraction form
    19,083.70/28,631.55 = 9,223.30/x
  3. Step 3: Cross multiply
    19,083.70x = 28,631.55 × 9,223.30
  4. Step 4: Simplify right side
    19,083.70x = 264,077,375.12
  5. Step 5: Solve for x
    x = 264,077,375.12/19,083.70
  6. Step 6: Final answer
    x = 13,837.85

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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.