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Finding the Fourth Proportional to 7,089,854.44, 9,784,029.54 and 3,870,659.56

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Solution

The fourth proportional to 7,089,854.44, 9,784,029.54 and 3,870,659.56 is: 5,341,526.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,089,854.44 : 9,784,029.54 = 3,870,659.56 : x
  2. Step 2: Convert to fraction form
    7,089,854.44/9,784,029.54 = 3,870,659.56/x
  3. Step 3: Cross multiply
    7,089,854.44x = 9,784,029.54 × 3,870,659.56
  4. Step 4: Simplify right side
    7,089,854.44x = 37,870,647,474,323.40
  5. Step 5: Solve for x
    x = 37,870,647,474,323.40/7,089,854.44
  6. Step 6: Final answer
    x = 5,341,526.80

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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.