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Finding the Fourth Proportional to 7,561,321,805.70, 11,341,982,708.55 and 7,561,321,805.70

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Solution

The fourth proportional to 7,561,321,805.70, 11,341,982,708.55 and 7,561,321,805.70 is: 11,341,982,708.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,561,321,805.70 : 11,341,982,708.55 = 7,561,321,805.70 : x
  2. Step 2: Convert to fraction form
    7,561,321,805.70/11,341,982,708.55 = 7,561,321,805.70/x
  3. Step 3: Cross multiply
    7,561,321,805.70x = 11,341,982,708.55 × 7,561,321,805.70
  4. Step 4: Simplify right side
    7,561,321,805.70x = 85,760,381,174,031,450,112
  5. Step 5: Solve for x
    x = 85,760,381,174,031,450,112/7,561,321,805.70
  6. Step 6: Final answer
    x = 11,341,982,708.55

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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.