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Finding the Fourth Proportional to 80,644.84, 111,285 and 44,833.60

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Solution

The fourth proportional to 80,644.84, 111,285 and 44,833.60 is: 61,867.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,644.84 : 111,285 = 44,833.60 : x
  2. Step 2: Convert to fraction form
    80,644.84/111,285 = 44,833.60/x
  3. Step 3: Cross multiply
    80,644.84x = 111,285 × 44,833.60
  4. Step 4: Simplify right side
    80,644.84x = 4,989,307,176
  5. Step 5: Solve for x
    x = 4,989,307,176/80,644.84
  6. Step 6: Final answer
    x = 61,867.66

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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.