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Finding the Fourth Proportional to 49,885.44, 74,770.80 and 21,798.96

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Solution

The fourth proportional to 49,885.44, 74,770.80 and 21,798.96 is: 32,673.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,885.44 : 74,770.80 = 21,798.96 : x
  2. Step 2: Convert to fraction form
    49,885.44/74,770.80 = 21,798.96/x
  3. Step 3: Cross multiply
    49,885.44x = 74,770.80 × 21,798.96
  4. Step 4: Simplify right side
    49,885.44x = 1,629,925,678.37
  5. Step 5: Solve for x
    x = 1,629,925,678.37/49,885.44
  6. Step 6: Final answer
    x = 32,673.37

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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.