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Finding the Fourth Proportional to 17,177.40, 23,704.86 and 9,725.40

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Solution

The fourth proportional to 17,177.40, 23,704.86 and 9,725.40 is: 13,421.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,177.40 : 23,704.86 = 9,725.40 : x
  2. Step 2: Convert to fraction form
    17,177.40/23,704.86 = 9,725.40/x
  3. Step 3: Cross multiply
    17,177.40x = 23,704.86 × 9,725.40
  4. Step 4: Simplify right side
    17,177.40x = 230,539,245.44
  5. Step 5: Solve for x
    x = 230,539,245.44/17,177.40
  6. Step 6: Final answer
    x = 13,421.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.