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Finding the Fourth Proportional to 17,079.48, 25,611.69 and 7,719.12

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Solution

The fourth proportional to 17,079.48, 25,611.69 and 7,719.12 is: 11,575.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,079.48 : 25,611.69 = 7,719.12 : x
  2. Step 2: Convert to fraction form
    17,079.48/25,611.69 = 7,719.12/x
  3. Step 3: Cross multiply
    17,079.48x = 25,611.69 × 7,719.12
  4. Step 4: Simplify right side
    17,079.48x = 197,699,708.51
  5. Step 5: Solve for x
    x = 197,699,708.51/17,079.48
  6. Step 6: Final answer
    x = 11,575.28

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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.