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Finding the Fourth Proportional to 8,950.90, 13,431.22 and 4,333.90

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Solution

The fourth proportional to 8,950.90, 13,431.22 and 4,333.90 is: 6,503.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.90 : 13,431.22 = 4,333.90 : x
  2. Step 2: Convert to fraction form
    8,950.90/13,431.22 = 4,333.90/x
  3. Step 3: Cross multiply
    8,950.90x = 13,431.22 × 4,333.90
  4. Step 4: Simplify right side
    8,950.90x = 58,209,564.36
  5. Step 5: Solve for x
    x = 58,209,564.36/8,950.90
  6. Step 6: Final answer
    x = 6,503.21

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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.