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Finding the Fourth Proportional to 7,338,751.20, 10,997,629.20 and 5,404,568.40

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Solution

The fourth proportional to 7,338,751.20, 10,997,629.20 and 5,404,568.40 is: 8,099,121.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338,751.20 : 10,997,629.20 = 5,404,568.40 : x
  2. Step 2: Convert to fraction form
    7,338,751.20/10,997,629.20 = 5,404,568.40/x
  3. Step 3: Cross multiply
    7,338,751.20x = 10,997,629.20 × 5,404,568.40
  4. Step 4: Simplify right side
    7,338,751.20x = 59,437,439,249,237.28
  5. Step 5: Solve for x
    x = 59,437,439,249,237.28/7,338,751.20
  6. Step 6: Final answer
    x = 8,099,121.72

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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.