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Finding the Fourth Proportional to 17,115.60, 25,644.60 and 16,078.80

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Solution

The fourth proportional to 17,115.60, 25,644.60 and 16,078.80 is: 24,091.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,115.60 : 25,644.60 = 16,078.80 : x
  2. Step 2: Convert to fraction form
    17,115.60/25,644.60 = 16,078.80/x
  3. Step 3: Cross multiply
    17,115.60x = 25,644.60 × 16,078.80
  4. Step 4: Simplify right side
    17,115.60x = 412,334,394.48
  5. Step 5: Solve for x
    x = 412,334,394.48/17,115.60
  6. Step 6: Final answer
    x = 24,091.14

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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.