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Finding the Fourth Proportional to 54,701.80, 82,052.70 and 31,330.60

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Solution

The fourth proportional to 54,701.80, 82,052.70 and 31,330.60 is: 46,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,701.80 : 82,052.70 = 31,330.60 : x
  2. Step 2: Convert to fraction form
    54,701.80/82,052.70 = 31,330.60/x
  3. Step 3: Cross multiply
    54,701.80x = 82,052.70 × 31,330.60
  4. Step 4: Simplify right side
    54,701.80x = 2,570,760,322.62
  5. Step 5: Solve for x
    x = 2,570,760,322.62/54,701.80
  6. Step 6: Final answer
    x = 46,995.90

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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.