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Finding the Fourth Proportional to 54,189.80, 81,246.30 and 24,621.80

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Solution

The fourth proportional to 54,189.80, 81,246.30 and 24,621.80 is: 36,915.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,189.80 : 81,246.30 = 24,621.80 : x
  2. Step 2: Convert to fraction form
    54,189.80/81,246.30 = 24,621.80/x
  3. Step 3: Cross multiply
    54,189.80x = 81,246.30 × 24,621.80
  4. Step 4: Simplify right side
    54,189.80x = 2,000,430,149.34
  5. Step 5: Solve for x
    x = 2,000,430,149.34/54,189.80
  6. Step 6: Final answer
    x = 36,915.25

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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.