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Finding the Fourth Proportional to 17,157.80, 25,735.74 and 4,845.48

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Solution

The fourth proportional to 17,157.80, 25,735.74 and 4,845.48 is: 7,267.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,157.80 : 25,735.74 = 4,845.48 : x
  2. Step 2: Convert to fraction form
    17,157.80/25,735.74 = 4,845.48/x
  3. Step 3: Cross multiply
    17,157.80x = 25,735.74 × 4,845.48
  4. Step 4: Simplify right side
    17,157.80x = 124,702,013.46
  5. Step 5: Solve for x
    x = 124,702,013.46/17,157.80
  6. Step 6: Final answer
    x = 7,267.95

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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.