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Finding the Fourth Proportional to 6,613,915.98, 9,917,012.70 and 2,565,673.38

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Solution

The fourth proportional to 6,613,915.98, 9,917,012.70 and 2,565,673.38 is: 3,847,012.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,613,915.98 : 9,917,012.70 = 2,565,673.38 : x
  2. Step 2: Convert to fraction form
    6,613,915.98/9,917,012.70 = 2,565,673.38/x
  3. Step 3: Cross multiply
    6,613,915.98x = 9,917,012.70 × 2,565,673.38
  4. Step 4: Simplify right side
    6,613,915.98x = 25,443,815,493,511.92
  5. Step 5: Solve for x
    x = 25,443,815,493,511.92/6,613,915.98
  6. Step 6: Final answer
    x = 3,847,012.20

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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.