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Finding the Fourth Proportional to 17,191.89, 25,811.79 and 8,877.92

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Solution

The fourth proportional to 17,191.89, 25,811.79 and 8,877.92 is: 13,329.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,191.89 : 25,811.79 = 8,877.92 : x
  2. Step 2: Convert to fraction form
    17,191.89/25,811.79 = 8,877.92/x
  3. Step 3: Cross multiply
    17,191.89x = 25,811.79 × 8,877.92
  4. Step 4: Simplify right side
    17,191.89x = 229,154,877.62
  5. Step 5: Solve for x
    x = 229,154,877.62/17,191.89
  6. Step 6: Final answer
    x = 13,329.24

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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.