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Finding the Fourth Proportional to 6,738,402.80, 10,091,857.80 and 6,603,100.40

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Solution

The fourth proportional to 6,738,402.80, 10,091,857.80 and 6,603,100.40 is: 9,889,220.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,738,402.80 : 10,091,857.80 = 6,603,100.40 : x
  2. Step 2: Convert to fraction form
    6,738,402.80/10,091,857.80 = 6,603,100.40/x
  3. Step 3: Cross multiply
    6,738,402.80x = 10,091,857.80 × 6,603,100.40
  4. Step 4: Simplify right side
    6,738,402.80x = 66,637,550,275,923.12
  5. Step 5: Solve for x
    x = 66,637,550,275,923.12/6,738,402.80
  6. Step 6: Final answer
    x = 9,889,220.38

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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.