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Finding the Fourth Proportional to 29,672.09, 40,946.48 and 16,243.07

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Solution

The fourth proportional to 29,672.09, 40,946.48 and 16,243.07 is: 22,414.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,672.09 : 40,946.48 = 16,243.07 : x
  2. Step 2: Convert to fraction form
    29,672.09/40,946.48 = 16,243.07/x
  3. Step 3: Cross multiply
    29,672.09x = 40,946.48 × 16,243.07
  4. Step 4: Simplify right side
    29,672.09x = 665,096,315.86
  5. Step 5: Solve for x
    x = 665,096,315.86/29,672.09
  6. Step 6: Final answer
    x = 22,414.88

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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.