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Finding the Fourth Proportional to 16,971.54, 25,460.99 and 7,105.74

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Solution

The fourth proportional to 16,971.54, 25,460.99 and 7,105.74 is: 10,660.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,971.54 : 25,460.99 = 7,105.74 : x
  2. Step 2: Convert to fraction form
    16,971.54/25,460.99 = 7,105.74/x
  3. Step 3: Cross multiply
    16,971.54x = 25,460.99 × 7,105.74
  4. Step 4: Simplify right side
    16,971.54x = 180,919,175.08
  5. Step 5: Solve for x
    x = 180,919,175.08/16,971.54
  6. Step 6: Final answer
    x = 10,660.15

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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.