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Finding the Fourth Proportional to 45,349.80, 67,890.30 and 33,714.60

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Solution

The fourth proportional to 45,349.80, 67,890.30 and 33,714.60 is: 50,471.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,349.80 : 67,890.30 = 33,714.60 : x
  2. Step 2: Convert to fraction form
    45,349.80/67,890.30 = 33,714.60/x
  3. Step 3: Cross multiply
    45,349.80x = 67,890.30 × 33,714.60
  4. Step 4: Simplify right side
    45,349.80x = 2,288,894,308.38
  5. Step 5: Solve for x
    x = 2,288,894,308.38/45,349.80
  6. Step 6: Final answer
    x = 50,471.98

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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.