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Finding the Fourth Proportional to 11,765,609.82, 17,649,431.40 and 3,245,946.30

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Solution

The fourth proportional to 11,765,609.82, 17,649,431.40 and 3,245,946.30 is: 4,869,199.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,765,609.82 : 17,649,431.40 = 3,245,946.30 : x
  2. Step 2: Convert to fraction form
    11,765,609.82/17,649,431.40 = 3,245,946.30/x
  3. Step 3: Cross multiply
    11,765,609.82x = 17,649,431.40 × 3,245,946.30
  4. Step 4: Simplify right side
    11,765,609.82x = 57,289,106,549,933.81
  5. Step 5: Solve for x
    x = 57,289,106,549,933.81/11,765,609.82
  6. Step 6: Final answer
    x = 4,869,199.93

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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.