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Finding the Fourth Proportional to 54,697.20, 82,045.80 and 31,304.40

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Solution

The fourth proportional to 54,697.20, 82,045.80 and 31,304.40 is: 46,956.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,697.20 : 82,045.80 = 31,304.40 : x
  2. Step 2: Convert to fraction form
    54,697.20/82,045.80 = 31,304.40/x
  3. Step 3: Cross multiply
    54,697.20x = 82,045.80 × 31,304.40
  4. Step 4: Simplify right side
    54,697.20x = 2,568,394,541.52
  5. Step 5: Solve for x
    x = 2,568,394,541.52/54,697.20
  6. Step 6: Final answer
    x = 46,956.60

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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.