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Finding the Fourth Proportional to 15,978,072.60, 23,978,918.70 and 10,584,930.60

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Solution

The fourth proportional to 15,978,072.60, 23,978,918.70 and 10,584,930.60 is: 15,885,219.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,978,072.60 : 23,978,918.70 = 10,584,930.60 : x
  2. Step 2: Convert to fraction form
    15,978,072.60/23,978,918.70 = 10,584,930.60/x
  3. Step 3: Cross multiply
    15,978,072.60x = 23,978,918.70 × 10,584,930.60
  4. Step 4: Simplify right side
    15,978,072.60x = 253,815,190,302,542.22
  5. Step 5: Solve for x
    x = 253,815,190,302,542.22/15,978,072.60
  6. Step 6: Final answer
    x = 15,885,219.49

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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.