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Finding the Fourth Proportional to 13,803,309.60, 20,704,964.40 and 3,706,951.20

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Solution

The fourth proportional to 13,803,309.60, 20,704,964.40 and 3,706,951.20 is: 5,560,426.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,803,309.60 : 20,704,964.40 = 3,706,951.20 : x
  2. Step 2: Convert to fraction form
    13,803,309.60/20,704,964.40 = 3,706,951.20/x
  3. Step 3: Cross multiply
    13,803,309.60x = 20,704,964.40 × 3,706,951.20
  4. Step 4: Simplify right side
    13,803,309.60x = 76,752,292,628,537.28
  5. Step 5: Solve for x
    x = 76,752,292,628,537.28/13,803,309.60
  6. Step 6: Final answer
    x = 5,560,426.80

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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.