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Finding the Fourth Proportional to 3,691,567.90, 5,537,351.85 and 3,691,567.90

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Solution

The fourth proportional to 3,691,567.90, 5,537,351.85 and 3,691,567.90 is: 5,537,351.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,691,567.90 : 5,537,351.85 = 3,691,567.90 : x
  2. Step 2: Convert to fraction form
    3,691,567.90/5,537,351.85 = 3,691,567.90/x
  3. Step 3: Cross multiply
    3,691,567.90x = 5,537,351.85 × 3,691,567.90
  4. Step 4: Simplify right side
    3,691,567.90x = 20,441,510,340,465.61
  5. Step 5: Solve for x
    x = 20,441,510,340,465.61/3,691,567.90
  6. Step 6: Final answer
    x = 5,537,351.85

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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.