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Finding the Fourth Proportional to 6,603,969.70, 9,905,954.55 and 6,603,969.70

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Solution

The fourth proportional to 6,603,969.70, 9,905,954.55 and 6,603,969.70 is: 9,905,954.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,603,969.70 : 9,905,954.55 = 6,603,969.70 : x
  2. Step 2: Convert to fraction form
    6,603,969.70/9,905,954.55 = 6,603,969.70/x
  3. Step 3: Cross multiply
    6,603,969.70x = 9,905,954.55 × 6,603,969.70
  4. Step 4: Simplify right side
    6,603,969.70x = 65,418,623,697,777.14
  5. Step 5: Solve for x
    x = 65,418,623,697,777.14/6,603,969.70
  6. Step 6: Final answer
    x = 9,905,954.55

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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.