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Finding the Fourth Proportional to 32,785.49, 45,251.12 and 20,846.49

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Solution

The fourth proportional to 32,785.49, 45,251.12 and 20,846.49 is: 28,772.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,785.49 : 45,251.12 = 20,846.49 : x
  2. Step 2: Convert to fraction form
    32,785.49/45,251.12 = 20,846.49/x
  3. Step 3: Cross multiply
    32,785.49x = 45,251.12 × 20,846.49
  4. Step 4: Simplify right side
    32,785.49x = 943,327,072.69
  5. Step 5: Solve for x
    x = 943,327,072.69/32,785.49
  6. Step 6: Final answer
    x = 28,772.70

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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.