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Finding the Fourth Proportional to 54,016.80, 80,852.40 and 49,869.60

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Solution

The fourth proportional to 54,016.80, 80,852.40 and 49,869.60 is: 74,644.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,016.80 : 80,852.40 = 49,869.60 : x
  2. Step 2: Convert to fraction form
    54,016.80/80,852.40 = 49,869.60/x
  3. Step 3: Cross multiply
    54,016.80x = 80,852.40 × 49,869.60
  4. Step 4: Simplify right side
    54,016.80x = 4,032,076,847.04
  5. Step 5: Solve for x
    x = 4,032,076,847.04/54,016.80
  6. Step 6: Final answer
    x = 74,644.87

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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.