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Finding the Fourth Proportional to 16,821.49, 25,233.06 and 7,451.41

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Solution

The fourth proportional to 16,821.49, 25,233.06 and 7,451.41 is: 11,177.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,821.49 : 25,233.06 = 7,451.41 : x
  2. Step 2: Convert to fraction form
    16,821.49/25,233.06 = 7,451.41/x
  3. Step 3: Cross multiply
    16,821.49x = 25,233.06 × 7,451.41
  4. Step 4: Simplify right side
    16,821.49x = 188,021,875.61
  5. Step 5: Solve for x
    x = 188,021,875.61/16,821.49
  6. Step 6: Final answer
    x = 11,177.48

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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.