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Finding the Fourth Proportional to 17,971.20, 27,110.40 and 17,049.60

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Solution

The fourth proportional to 17,971.20, 27,110.40 and 17,049.60 is: 25,720.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,971.20 : 27,110.40 = 17,049.60 : x
  2. Step 2: Convert to fraction form
    17,971.20/27,110.40 = 17,049.60/x
  3. Step 3: Cross multiply
    17,971.20x = 27,110.40 × 17,049.60
  4. Step 4: Simplify right side
    17,971.20x = 462,221,475.84
  5. Step 5: Solve for x
    x = 462,221,475.84/17,971.20
  6. Step 6: Final answer
    x = 25,720.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.