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Finding the Fourth Proportional to 43,680.63, 65,482.15 and 17,020.44

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Solution

The fourth proportional to 43,680.63, 65,482.15 and 17,020.44 is: 25,515.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,680.63 : 65,482.15 = 17,020.44 : x
  2. Step 2: Convert to fraction form
    43,680.63/65,482.15 = 17,020.44/x
  3. Step 3: Cross multiply
    43,680.63x = 65,482.15 × 17,020.44
  4. Step 4: Simplify right side
    43,680.63x = 1,114,535,005.15
  5. Step 5: Solve for x
    x = 1,114,535,005.15/43,680.63
  6. Step 6: Final answer
    x = 25,515.54

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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.