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Finding the Fourth Proportional to 17,049.72, 25,574.53 and 7,678.77

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Solution

The fourth proportional to 17,049.72, 25,574.53 and 7,678.77 is: 11,518.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,049.72 : 25,574.53 = 7,678.77 : x
  2. Step 2: Convert to fraction form
    17,049.72/25,574.53 = 7,678.77/x
  3. Step 3: Cross multiply
    17,049.72x = 25,574.53 × 7,678.77
  4. Step 4: Simplify right side
    17,049.72x = 196,380,933.73
  5. Step 5: Solve for x
    x = 196,380,933.73/17,049.72
  6. Step 6: Final answer
    x = 11,518.13

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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.