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Finding the Fourth Proportional to 16,911.72, 25,351.08 and 7,053.80

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Solution

The fourth proportional to 16,911.72, 25,351.08 and 7,053.80 is: 10,573.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,911.72 : 25,351.08 = 7,053.80 : x
  2. Step 2: Convert to fraction form
    16,911.72/25,351.08 = 7,053.80/x
  3. Step 3: Cross multiply
    16,911.72x = 25,351.08 × 7,053.80
  4. Step 4: Simplify right side
    16,911.72x = 178,821,448.10
  5. Step 5: Solve for x
    x = 178,821,448.10/16,911.72
  6. Step 6: Final answer
    x = 10,573.82

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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.