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Finding the Fourth Proportional to 53,954.10, 80,926.02 and 18,891.90

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Solution

The fourth proportional to 53,954.10, 80,926.02 and 18,891.90 is: 28,336.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,954.10 : 80,926.02 = 18,891.90 : x
  2. Step 2: Convert to fraction form
    53,954.10/80,926.02 = 18,891.90/x
  3. Step 3: Cross multiply
    53,954.10x = 80,926.02 × 18,891.90
  4. Step 4: Simplify right side
    53,954.10x = 1,528,846,277.24
  5. Step 5: Solve for x
    x = 1,528,846,277.24/53,954.10
  6. Step 6: Final answer
    x = 28,336.05

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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.