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Finding the Fourth Proportional to 54,029.80, 81,007.80 and 24,431.50

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Solution

The fourth proportional to 54,029.80, 81,007.80 and 24,431.50 is: 36,630.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,029.80 : 81,007.80 = 24,431.50 : x
  2. Step 2: Convert to fraction form
    54,029.80/81,007.80 = 24,431.50/x
  3. Step 3: Cross multiply
    54,029.80x = 81,007.80 × 24,431.50
  4. Step 4: Simplify right side
    54,029.80x = 1,979,142,065.70
  5. Step 5: Solve for x
    x = 1,979,142,065.70/54,029.80
  6. Step 6: Final answer
    x = 36,630.56

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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.