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Finding the Fourth Proportional to 45,367.52, 68,043.12 and 16,899.20

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Solution

The fourth proportional to 45,367.52, 68,043.12 and 16,899.20 is: 25,345.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,367.52 : 68,043.12 = 16,899.20 : x
  2. Step 2: Convert to fraction form
    45,367.52/68,043.12 = 16,899.20/x
  3. Step 3: Cross multiply
    45,367.52x = 68,043.12 × 16,899.20
  4. Step 4: Simplify right side
    45,367.52x = 1,149,874,293.50
  5. Step 5: Solve for x
    x = 1,149,874,293.50/45,367.52
  6. Step 6: Final answer
    x = 25,345.76

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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.