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Finding the Fourth Proportional to 43,352.84, 65,033.60 and 11,763.40

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Solution

The fourth proportional to 43,352.84, 65,033.60 and 11,763.40 is: 17,646.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,352.84 : 65,033.60 = 11,763.40 : x
  2. Step 2: Convert to fraction form
    43,352.84/65,033.60 = 11,763.40/x
  3. Step 3: Cross multiply
    43,352.84x = 65,033.60 × 11,763.40
  4. Step 4: Simplify right side
    43,352.84x = 765,016,250.24
  5. Step 5: Solve for x
    x = 765,016,250.24/43,352.84
  6. Step 6: Final answer
    x = 17,646.28

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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.