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Finding the Fourth Proportional to 30,043.43, 41,460.05 and 16,431.74

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Solution

The fourth proportional to 30,043.43, 41,460.05 and 16,431.74 is: 22,675.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,043.43 : 41,460.05 = 16,431.74 : x
  2. Step 2: Convert to fraction form
    30,043.43/41,460.05 = 16,431.74/x
  3. Step 3: Cross multiply
    30,043.43x = 41,460.05 × 16,431.74
  4. Step 4: Simplify right side
    30,043.43x = 681,260,472.53
  5. Step 5: Solve for x
    x = 681,260,472.53/30,043.43
  6. Step 6: Final answer
    x = 22,675.86

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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.