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Finding the Fourth Proportional to 20,374.56, 30,568.02 and 9,844.86

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Solution

The fourth proportional to 20,374.56, 30,568.02 and 9,844.86 is: 14,770.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,374.56 : 30,568.02 = 9,844.86 : x
  2. Step 2: Convert to fraction form
    20,374.56/30,568.02 = 9,844.86/x
  3. Step 3: Cross multiply
    20,374.56x = 30,568.02 × 9,844.86
  4. Step 4: Simplify right side
    20,374.56x = 300,937,877.38
  5. Step 5: Solve for x
    x = 300,937,877.38/20,374.56
  6. Step 6: Final answer
    x = 14,770.28

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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.