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Finding the Fourth Proportional to 6,661,676.79, 9,991,020.53 and 3,063,987.27

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Solution

The fourth proportional to 6,661,676.79, 9,991,020.53 and 3,063,987.27 is: 4,595,293.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,661,676.79 : 9,991,020.53 = 3,063,987.27 : x
  2. Step 2: Convert to fraction form
    6,661,676.79/9,991,020.53 = 3,063,987.27/x
  3. Step 3: Cross multiply
    6,661,676.79x = 9,991,020.53 × 3,063,987.27
  4. Step 4: Simplify right side
    6,661,676.79x = 30,612,359,725,888.62
  5. Step 5: Solve for x
    x = 30,612,359,725,888.62/6,661,676.79
  6. Step 6: Final answer
    x = 4,595,293.45

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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.