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Finding the Fourth Proportional to 20,594.95, 30,891.70 and 8,741.11

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Solution

The fourth proportional to 20,594.95, 30,891.70 and 8,741.11 is: 13,111.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,594.95 : 30,891.70 = 8,741.11 : x
  2. Step 2: Convert to fraction form
    20,594.95/30,891.70 = 8,741.11/x
  3. Step 3: Cross multiply
    20,594.95x = 30,891.70 × 8,741.11
  4. Step 4: Simplify right side
    20,594.95x = 270,027,747.79
  5. Step 5: Solve for x
    x = 270,027,747.79/20,594.95
  6. Step 6: Final answer
    x = 13,111.36

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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.