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Finding the Fourth Proportional to 17,752.80, 26,629.20 and 6,808.80

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Solution

The fourth proportional to 17,752.80, 26,629.20 and 6,808.80 is: 10,213.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,752.80 : 26,629.20 = 6,808.80 : x
  2. Step 2: Convert to fraction form
    17,752.80/26,629.20 = 6,808.80/x
  3. Step 3: Cross multiply
    17,752.80x = 26,629.20 × 6,808.80
  4. Step 4: Simplify right side
    17,752.80x = 181,312,896.96
  5. Step 5: Solve for x
    x = 181,312,896.96/17,752.80
  6. Step 6: Final answer
    x = 10,213.20

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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.