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Finding the Fourth Proportional to 7,000,647.75, 10,502,743.10 and 1,951,958.25

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Solution

The fourth proportional to 7,000,647.75, 10,502,743.10 and 1,951,958.25 is: 2,928,431.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,000,647.75 : 10,502,743.10 = 1,951,958.25 : x
  2. Step 2: Convert to fraction form
    7,000,647.75/10,502,743.10 = 1,951,958.25/x
  3. Step 3: Cross multiply
    7,000,647.75x = 10,502,743.10 × 1,951,958.25
  4. Step 4: Simplify right side
    7,000,647.75x = 20,500,916,031,915.79
  5. Step 5: Solve for x
    x = 20,500,916,031,915.79/7,000,647.75
  6. Step 6: Final answer
    x = 2,928,431.31

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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.