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Finding the Fourth Proportional to 16,649.70, 24,968.79 and 5,553.78

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Solution

The fourth proportional to 16,649.70, 24,968.79 and 5,553.78 is: 8,328.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,649.70 : 24,968.79 = 5,553.78 : x
  2. Step 2: Convert to fraction form
    16,649.70/24,968.79 = 5,553.78/x
  3. Step 3: Cross multiply
    16,649.70x = 24,968.79 × 5,553.78
  4. Step 4: Simplify right side
    16,649.70x = 138,671,166.53
  5. Step 5: Solve for x
    x = 138,671,166.53/16,649.70
  6. Step 6: Final answer
    x = 8,328.75

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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.