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Finding the Fourth Proportional to 17,110.60, 25,665.90 and 7,894.60

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Solution

The fourth proportional to 17,110.60, 25,665.90 and 7,894.60 is: 11,841.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,110.60 : 25,665.90 = 7,894.60 : x
  2. Step 2: Convert to fraction form
    17,110.60/25,665.90 = 7,894.60/x
  3. Step 3: Cross multiply
    17,110.60x = 25,665.90 × 7,894.60
  4. Step 4: Simplify right side
    17,110.60x = 202,622,014.14
  5. Step 5: Solve for x
    x = 202,622,014.14/17,110.60
  6. Step 6: Final answer
    x = 11,841.90

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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.