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Finding the Fourth Proportional to 6,821,998.20, 9,568,492.20 and 6,821,998.20

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Solution

The fourth proportional to 6,821,998.20, 9,568,492.20 and 6,821,998.20 is: 9,568,492.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821,998.20 : 9,568,492.20 = 6,821,998.20 : x
  2. Step 2: Convert to fraction form
    6,821,998.20/9,568,492.20 = 6,821,998.20/x
  3. Step 3: Cross multiply
    6,821,998.20x = 9,568,492.20 × 6,821,998.20
  4. Step 4: Simplify right side
    6,821,998.20x = 65,276,236,565,114.04
  5. Step 5: Solve for x
    x = 65,276,236,565,114.04/6,821,998.20
  6. Step 6: Final answer
    x = 9,568,492.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.