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Finding the Fourth Proportional to 17,078.80, 25,644.60 and 9,302.80

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Solution

The fourth proportional to 17,078.80, 25,644.60 and 9,302.80 is: 13,968.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,078.80 : 25,644.60 = 9,302.80 : x
  2. Step 2: Convert to fraction form
    17,078.80/25,644.60 = 9,302.80/x
  3. Step 3: Cross multiply
    17,078.80x = 25,644.60 × 9,302.80
  4. Step 4: Simplify right side
    17,078.80x = 238,566,584.88
  5. Step 5: Solve for x
    x = 238,566,584.88/17,078.80
  6. Step 6: Final answer
    x = 13,968.58

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1.5x scale

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.