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Finding the Fourth Proportional to 20,594.57, 30,891.86 and 5,012.19

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Solution

The fourth proportional to 20,594.57, 30,891.86 and 5,012.19 is: 7,518.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,594.57 : 30,891.86 = 5,012.19 : x
  2. Step 2: Convert to fraction form
    20,594.57/30,891.86 = 5,012.19/x
  3. Step 3: Cross multiply
    20,594.57x = 30,891.86 × 5,012.19
  4. Step 4: Simplify right side
    20,594.57x = 154,835,894.85
  5. Step 5: Solve for x
    x = 154,835,894.85/20,594.57
  6. Step 6: Final answer
    x = 7,518.29

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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.