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Finding the Fourth Proportional to 43,356.20, 65,007.90 and 17,029.40

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Solution

The fourth proportional to 43,356.20, 65,007.90 and 17,029.40 is: 25,533.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,356.20 : 65,007.90 = 17,029.40 : x
  2. Step 2: Convert to fraction form
    43,356.20/65,007.90 = 17,029.40/x
  3. Step 3: Cross multiply
    43,356.20x = 65,007.90 × 17,029.40
  4. Step 4: Simplify right side
    43,356.20x = 1,107,045,532.26
  5. Step 5: Solve for x
    x = 1,107,045,532.26/43,356.20
  6. Step 6: Final answer
    x = 25,533.73

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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.