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Finding the Fourth Proportional to 22,102,993.20, 33,154,489.80 and 9,978,265.20

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Solution

The fourth proportional to 22,102,993.20, 33,154,489.80 and 9,978,265.20 is: 14,967,397.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,102,993.20 : 33,154,489.80 = 9,978,265.20 : x
  2. Step 2: Convert to fraction form
    22,102,993.20/33,154,489.80 = 9,978,265.20/x
  3. Step 3: Cross multiply
    22,102,993.20x = 33,154,489.80 × 9,978,265.20
  4. Step 4: Simplify right side
    22,102,993.20x = 330,824,291,795,094.94
  5. Step 5: Solve for x
    x = 330,824,291,795,094.94/22,102,993.20
  6. Step 6: Final answer
    x = 14,967,397.80

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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.