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Finding the Fourth Proportional to 17,186.88, 25,780.32 and 4,874.88

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Solution

The fourth proportional to 17,186.88, 25,780.32 and 4,874.88 is: 7,312.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,186.88 : 25,780.32 = 4,874.88 : x
  2. Step 2: Convert to fraction form
    17,186.88/25,780.32 = 4,874.88/x
  3. Step 3: Cross multiply
    17,186.88x = 25,780.32 × 4,874.88
  4. Step 4: Simplify right side
    17,186.88x = 125,675,966.36
  5. Step 5: Solve for x
    x = 125,675,966.36/17,186.88
  6. Step 6: Final answer
    x = 7,312.32

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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.