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Finding the Fourth Proportional to 17,168.48, 25,744.80 and 7,808.12

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Solution

The fourth proportional to 17,168.48, 25,744.80 and 7,808.12 is: 11,708.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,168.48 : 25,744.80 = 7,808.12 : x
  2. Step 2: Convert to fraction form
    17,168.48/25,744.80 = 7,808.12/x
  3. Step 3: Cross multiply
    17,168.48x = 25,744.80 × 7,808.12
  4. Step 4: Simplify right side
    17,168.48x = 201,018,487.78
  5. Step 5: Solve for x
    x = 201,018,487.78/17,168.48
  6. Step 6: Final answer
    x = 11,708.58

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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.