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Finding the Fourth Proportional to 17,077.60, 25,622.80 and 6,696.80

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Solution

The fourth proportional to 17,077.60, 25,622.80 and 6,696.80 is: 10,047.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,077.60 : 25,622.80 = 6,696.80 : x
  2. Step 2: Convert to fraction form
    17,077.60/25,622.80 = 6,696.80/x
  3. Step 3: Cross multiply
    17,077.60x = 25,622.80 × 6,696.80
  4. Step 4: Simplify right side
    17,077.60x = 171,590,767.04
  5. Step 5: Solve for x
    x = 171,590,767.04/17,077.60
  6. Step 6: Final answer
    x = 10,047.71

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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.