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Finding the Fourth Proportional to 15,978,982.60, 23,954,477.10 and 9,591,776.20

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Solution

The fourth proportional to 15,978,982.60, 23,954,477.10 and 9,591,776.20 is: 14,379,262.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,978,982.60 : 23,954,477.10 = 9,591,776.20 : x
  2. Step 2: Convert to fraction form
    15,978,982.60/23,954,477.10 = 9,591,776.20/x
  3. Step 3: Cross multiply
    15,978,982.60x = 23,954,477.10 × 9,591,776.20
  4. Step 4: Simplify right side
    15,978,982.60x = 229,765,983,331,225.03
  5. Step 5: Solve for x
    x = 229,765,983,331,225.03/15,978,982.60
  6. Step 6: Final answer
    x = 14,379,262.38

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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.