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Finding the Fourth Proportional to 5,616,895.72, 7,751,299.20 and 3,038,575.78

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Solution

The fourth proportional to 5,616,895.72, 7,751,299.20 and 3,038,575.78 is: 4,193,225.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,616,895.72 : 7,751,299.20 = 3,038,575.78 : x
  2. Step 2: Convert to fraction form
    5,616,895.72/7,751,299.20 = 3,038,575.78/x
  3. Step 3: Cross multiply
    5,616,895.72x = 7,751,299.20 × 3,038,575.78
  4. Step 4: Simplify right side
    5,616,895.72x = 23,552,910,012,653.38
  5. Step 5: Solve for x
    x = 23,552,910,012,653.38/5,616,895.72
  6. Step 6: Final answer
    x = 4,193,225.44

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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.