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Finding the Fourth Proportional to 7,338,889.70, 11,008,334.55 and 6,653,921.30

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Solution

The fourth proportional to 7,338,889.70, 11,008,334.55 and 6,653,921.30 is: 9,980,881.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338,889.70 : 11,008,334.55 = 6,653,921.30 : x
  2. Step 2: Convert to fraction form
    7,338,889.70/11,008,334.55 = 6,653,921.30/x
  3. Step 3: Cross multiply
    7,338,889.70x = 11,008,334.55 × 6,653,921.30
  4. Step 4: Simplify right side
    7,338,889.70x = 73,248,591,739,770.92
  5. Step 5: Solve for x
    x = 73,248,591,739,770.92/7,338,889.70
  6. Step 6: Final answer
    x = 9,980,881.95

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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.