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Finding the Fourth Proportional to 7,793,998.80, 11,690,998.20 and 4,966,645.20

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Solution

The fourth proportional to 7,793,998.80, 11,690,998.20 and 4,966,645.20 is: 7,449,967.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,793,998.80 : 11,690,998.20 = 4,966,645.20 : x
  2. Step 2: Convert to fraction form
    7,793,998.80/11,690,998.20 = 4,966,645.20/x
  3. Step 3: Cross multiply
    7,793,998.80x = 11,690,998.20 × 4,966,645.20
  4. Step 4: Simplify right side
    7,793,998.80x = 58,065,040,093,238.64
  5. Step 5: Solve for x
    x = 58,065,040,093,238.64/7,793,998.80
  6. Step 6: Final answer
    x = 7,449,967.80

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Double scale
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Similar ratio
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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.