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Finding the Fourth Proportional to 13,829,701.20, 20,744,551.80 and 8,803,294.80

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Solution

The fourth proportional to 13,829,701.20, 20,744,551.80 and 8,803,294.80 is: 13,204,942.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829,701.20 : 20,744,551.80 = 8,803,294.80 : x
  2. Step 2: Convert to fraction form
    13,829,701.20/20,744,551.80 = 8,803,294.80/x
  3. Step 3: Cross multiply
    13,829,701.20x = 20,744,551.80 × 8,803,294.80
  4. Step 4: Simplify right side
    13,829,701.20x = 182,620,404,989,270.66
  5. Step 5: Solve for x
    x = 182,620,404,989,270.66/13,829,701.20
  6. Step 6: Final answer
    x = 13,204,942.20

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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.