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Finding the Fourth Proportional to 20,594.45, 30,891.71 and 5,012.08

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Solution

The fourth proportional to 20,594.45, 30,891.71 and 5,012.08 is: 7,518.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,594.45 : 30,891.71 = 5,012.08 : x
  2. Step 2: Convert to fraction form
    20,594.45/30,891.71 = 5,012.08/x
  3. Step 3: Cross multiply
    20,594.45x = 30,891.71 × 5,012.08
  4. Step 4: Simplify right side
    20,594.45x = 154,831,657.16
  5. Step 5: Solve for x
    x = 154,831,657.16/20,594.45
  6. Step 6: Final answer
    x = 7,518.12

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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.