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Finding the Fourth Proportional to 5,987,647.20, 8,981,470.80 and 2,956,465.20

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Solution

The fourth proportional to 5,987,647.20, 8,981,470.80 and 2,956,465.20 is: 4,434,697.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,987,647.20 : 8,981,470.80 = 2,956,465.20 : x
  2. Step 2: Convert to fraction form
    5,987,647.20/8,981,470.80 = 2,956,465.20/x
  3. Step 3: Cross multiply
    5,987,647.20x = 8,981,470.80 × 2,956,465.20
  4. Step 4: Simplify right side
    5,987,647.20x = 26,553,405,865,016.16
  5. Step 5: Solve for x
    x = 26,553,405,865,016.16/5,987,647.20
  6. Step 6: Final answer
    x = 4,434,697.80

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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.