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Finding the Fourth Proportional to 6,978,633.70, 10,451,153.91 and 4,727,948.26

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Solution

The fourth proportional to 6,978,633.70, 10,451,153.91 and 4,727,948.26 is: 7,080,542.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,978,633.70 : 10,451,153.91 = 4,727,948.26 : x
  2. Step 2: Convert to fraction form
    6,978,633.70/10,451,153.91 = 4,727,948.26/x
  3. Step 3: Cross multiply
    6,978,633.70x = 10,451,153.91 × 4,727,948.26
  4. Step 4: Simplify right side
    6,978,633.70x = 49,412,514,943,776.70
  5. Step 5: Solve for x
    x = 49,412,514,943,776.70/6,978,633.70
  6. Step 6: Final answer
    x = 7,080,542.85

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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.