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Finding the Fourth Proportional to 45,905.80, 68,874.90 and 44,285.80

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Solution

The fourth proportional to 45,905.80, 68,874.90 and 44,285.80 is: 66,444.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,905.80 : 68,874.90 = 44,285.80 : x
  2. Step 2: Convert to fraction form
    45,905.80/68,874.90 = 44,285.80/x
  3. Step 3: Cross multiply
    45,905.80x = 68,874.90 × 44,285.80
  4. Step 4: Simplify right side
    45,905.80x = 3,050,180,046.42
  5. Step 5: Solve for x
    x = 3,050,180,046.42/45,905.80
  6. Step 6: Final answer
    x = 66,444.33

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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.