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Finding the Fourth Proportional to 6,626.51, 9,939.54 and 1,696.20

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Solution

The fourth proportional to 6,626.51, 9,939.54 and 1,696.20 is: 2,544.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,626.51 : 9,939.54 = 1,696.20 : x
  2. Step 2: Convert to fraction form
    6,626.51/9,939.54 = 1,696.20/x
  3. Step 3: Cross multiply
    6,626.51x = 9,939.54 × 1,696.20
  4. Step 4: Simplify right side
    6,626.51x = 16,859,416.84
  5. Step 5: Solve for x
    x = 16,859,416.84/6,626.51
  6. Step 6: Final answer
    x = 2,544.24

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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.