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Finding the Fourth Proportional to 17,195.76, 25,780.64 and 8,872.16

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Solution

The fourth proportional to 17,195.76, 25,780.64 and 8,872.16 is: 13,301.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,195.76 : 25,780.64 = 8,872.16 : x
  2. Step 2: Convert to fraction form
    17,195.76/25,780.64 = 8,872.16/x
  3. Step 3: Cross multiply
    17,195.76x = 25,780.64 × 8,872.16
  4. Step 4: Simplify right side
    17,195.76x = 228,729,962.98
  5. Step 5: Solve for x
    x = 228,729,962.98/17,195.76
  6. Step 6: Final answer
    x = 13,301.53

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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.