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Finding the Fourth Proportional to 7,149,984.72, 9,866,771.48 and 4,052,793.60

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Solution

The fourth proportional to 7,149,984.72, 9,866,771.48 and 4,052,793.60 is: 5,592,737.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149,984.72 : 9,866,771.48 = 4,052,793.60 : x
  2. Step 2: Convert to fraction form
    7,149,984.72/9,866,771.48 = 4,052,793.60/x
  3. Step 3: Cross multiply
    7,149,984.72x = 9,866,771.48 × 4,052,793.60
  4. Step 4: Simplify right side
    7,149,984.72x = 39,987,988,306,806.53
  5. Step 5: Solve for x
    x = 39,987,988,306,806.53/7,149,984.72
  6. Step 6: Final answer
    x = 5,592,737.59

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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.