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Finding the Fourth Proportional to 13,788,608.40, 20,682,912.60 and 4,700,967.30

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Solution

The fourth proportional to 13,788,608.40, 20,682,912.60 and 4,700,967.30 is: 7,051,450.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788,608.40 : 20,682,912.60 = 4,700,967.30 : x
  2. Step 2: Convert to fraction form
    13,788,608.40/20,682,912.60 = 4,700,967.30/x
  3. Step 3: Cross multiply
    13,788,608.40x = 20,682,912.60 × 4,700,967.30
  4. Step 4: Simplify right side
    13,788,608.40x = 97,229,695,801,357.98
  5. Step 5: Solve for x
    x = 97,229,695,801,357.98/13,788,608.40
  6. Step 6: Final answer
    x = 7,051,450.95

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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.