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Finding the Fourth Proportional to 29,674.60, 44,609.10 and 20,969.80

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Solution

The fourth proportional to 29,674.60, 44,609.10 and 20,969.80 is: 31,523.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,674.60 : 44,609.10 = 20,969.80 : x
  2. Step 2: Convert to fraction form
    29,674.60/44,609.10 = 20,969.80/x
  3. Step 3: Cross multiply
    29,674.60x = 44,609.10 × 20,969.80
  4. Step 4: Simplify right side
    29,674.60x = 935,443,905.18
  5. Step 5: Solve for x
    x = 935,443,905.18/29,674.60
  6. Step 6: Final answer
    x = 31,523.39

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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.