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Finding the Fourth Proportional to 17,168.60, 25,740.60 and 6,629.60

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Solution

The fourth proportional to 17,168.60, 25,740.60 and 6,629.60 is: 9,939.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,168.60 : 25,740.60 = 6,629.60 : x
  2. Step 2: Convert to fraction form
    17,168.60/25,740.60 = 6,629.60/x
  3. Step 3: Cross multiply
    17,168.60x = 25,740.60 × 6,629.60
  4. Step 4: Simplify right side
    17,168.60x = 170,649,881.76
  5. Step 5: Solve for x
    x = 170,649,881.76/17,168.60
  6. Step 6: Final answer
    x = 9,939.65

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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.