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Finding the Fourth Proportional to 7,235,906.81, 9,983,599.79 and 4,137,791.67

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Solution

The fourth proportional to 7,235,906.81, 9,983,599.79 and 4,137,791.67 is: 5,709,036.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,235,906.81 : 9,983,599.79 = 4,137,791.67 : x
  2. Step 2: Convert to fraction form
    7,235,906.81/9,983,599.79 = 4,137,791.67/x
  3. Step 3: Cross multiply
    7,235,906.81x = 9,983,599.79 × 4,137,791.67
  4. Step 4: Simplify right side
    7,235,906.81x = 41,310,056,026,986.79
  5. Step 5: Solve for x
    x = 41,310,056,026,986.79/7,235,906.81
  6. Step 6: Final answer
    x = 5,709,036.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.