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Finding the Fourth Proportional to 10,662,415.80, 15,993,623.70 and 3,089,628.60

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Solution

The fourth proportional to 10,662,415.80, 15,993,623.70 and 3,089,628.60 is: 4,634,442.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,662,415.80 : 15,993,623.70 = 3,089,628.60 : x
  2. Step 2: Convert to fraction form
    10,662,415.80/15,993,623.70 = 3,089,628.60/x
  3. Step 3: Cross multiply
    10,662,415.80x = 15,993,623.70 × 3,089,628.60
  4. Step 4: Simplify right side
    10,662,415.80x = 49,414,357,201,157.82
  5. Step 5: Solve for x
    x = 49,414,357,201,157.82/10,662,415.80
  6. Step 6: Final answer
    x = 4,634,442.90

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Similar ratio
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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.