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Finding the Fourth Proportional to 9,081.50, 13,622.26 and 3,609.50

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Solution

The fourth proportional to 9,081.50, 13,622.26 and 3,609.50 is: 5,414.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,081.50 : 13,622.26 = 3,609.50 : x
  2. Step 2: Convert to fraction form
    9,081.50/13,622.26 = 3,609.50/x
  3. Step 3: Cross multiply
    9,081.50x = 13,622.26 × 3,609.50
  4. Step 4: Simplify right side
    9,081.50x = 49,169,547.47
  5. Step 5: Solve for x
    x = 49,169,547.47/9,081.50
  6. Step 6: Final answer
    x = 5,414.25

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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.