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Finding the Fourth Proportional to 6,972,040.80, 10,458,061.20 and 6,972,040.80

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Solution

The fourth proportional to 6,972,040.80, 10,458,061.20 and 6,972,040.80 is: 10,458,061.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,972,040.80 : 10,458,061.20 = 6,972,040.80 : x
  2. Step 2: Convert to fraction form
    6,972,040.80/10,458,061.20 = 6,972,040.80/x
  3. Step 3: Cross multiply
    6,972,040.80x = 10,458,061.20 × 6,972,040.80
  4. Step 4: Simplify right side
    6,972,040.80x = 72,914,029,375,296.95
  5. Step 5: Solve for x
    x = 72,914,029,375,296.95/6,972,040.80
  6. Step 6: Final answer
    x = 10,458,061.20

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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.