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Finding the Fourth Proportional to 6,819,871.40, 9,410,752.50 and 3,763,888.28

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Solution

The fourth proportional to 6,819,871.40, 9,410,752.50 and 3,763,888.28 is: 5,193,796.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,819,871.40 : 9,410,752.50 = 3,763,888.28 : x
  2. Step 2: Convert to fraction form
    6,819,871.40/9,410,752.50 = 3,763,888.28/x
  3. Step 3: Cross multiply
    6,819,871.40x = 9,410,752.50 × 3,763,888.28
  4. Step 4: Simplify right side
    6,819,871.40x = 35,421,021,040,730.70
  5. Step 5: Solve for x
    x = 35,421,021,040,730.70/6,819,871.40
  6. Step 6: Final answer
    x = 5,193,796.04

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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.