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Finding the Fourth Proportional to 23,309,864.80, 34,964,797.20 and 21,987,167.20

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Solution

The fourth proportional to 23,309,864.80, 34,964,797.20 and 21,987,167.20 is: 32,980,750.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,309,864.80 : 34,964,797.20 = 21,987,167.20 : x
  2. Step 2: Convert to fraction form
    23,309,864.80/34,964,797.20 = 21,987,167.20/x
  3. Step 3: Cross multiply
    23,309,864.80x = 34,964,797.20 × 21,987,167.20
  4. Step 4: Simplify right side
    23,309,864.80x = 768,776,842,150,491.88
  5. Step 5: Solve for x
    x = 768,776,842,150,491.88/23,309,864.80
  6. Step 6: Final answer
    x = 32,980,750.80

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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.