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Finding the Fourth Proportional to 20,393.87, 30,595.46 and 7,246.22

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Solution

The fourth proportional to 20,393.87, 30,595.46 and 7,246.22 is: 10,870.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,393.87 : 30,595.46 = 7,246.22 : x
  2. Step 2: Convert to fraction form
    20,393.87/30,595.46 = 7,246.22/x
  3. Step 3: Cross multiply
    20,393.87x = 30,595.46 × 7,246.22
  4. Step 4: Simplify right side
    20,393.87x = 221,701,244.95
  5. Step 5: Solve for x
    x = 221,701,244.95/20,393.87
  6. Step 6: Final answer
    x = 10,870.98

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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.