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Finding the Fourth Proportional to 20,375.46, 30,566.03 and 9,284.94

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Solution

The fourth proportional to 20,375.46, 30,566.03 and 9,284.94 is: 13,928.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,375.46 : 30,566.03 = 9,284.94 : x
  2. Step 2: Convert to fraction form
    20,375.46/30,566.03 = 9,284.94/x
  3. Step 3: Cross multiply
    20,375.46x = 30,566.03 × 9,284.94
  4. Step 4: Simplify right side
    20,375.46x = 283,803,708.16
  5. Step 5: Solve for x
    x = 283,803,708.16/20,375.46
  6. Step 6: Final answer
    x = 13,928.70

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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.