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Finding the Fourth Proportional to 16,412.64, 22,649.43 and 8,960.64

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Solution

The fourth proportional to 16,412.64, 22,649.43 and 8,960.64 is: 12,365.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,412.64 : 22,649.43 = 8,960.64 : x
  2. Step 2: Convert to fraction form
    16,412.64/22,649.43 = 8,960.64/x
  3. Step 3: Cross multiply
    16,412.64x = 22,649.43 × 8,960.64
  4. Step 4: Simplify right side
    16,412.64x = 202,953,388.44
  5. Step 5: Solve for x
    x = 202,953,388.44/16,412.64
  6. Step 6: Final answer
    x = 12,365.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.