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Finding the Fourth Proportional to 16,649.68, 24,989.64 and 8,865.04

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Solution

The fourth proportional to 16,649.68, 24,989.64 and 8,865.04 is: 13,305.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,649.68 : 24,989.64 = 8,865.04 : x
  2. Step 2: Convert to fraction form
    16,649.68/24,989.64 = 8,865.04/x
  3. Step 3: Cross multiply
    16,649.68x = 24,989.64 × 8,865.04
  4. Step 4: Simplify right side
    16,649.68x = 221,534,158.19
  5. Step 5: Solve for x
    x = 221,534,158.19/16,649.68
  6. Step 6: Final answer
    x = 13,305.61

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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.