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Finding the Fourth Proportional to 19,773.54, 27,286.83 and 10,820.44

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Solution

The fourth proportional to 19,773.54, 27,286.83 and 10,820.44 is: 14,931.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,773.54 : 27,286.83 = 10,820.44 : x
  2. Step 2: Convert to fraction form
    19,773.54/27,286.83 = 10,820.44/x
  3. Step 3: Cross multiply
    19,773.54x = 27,286.83 × 10,820.44
  4. Step 4: Simplify right side
    19,773.54x = 295,255,506.81
  5. Step 5: Solve for x
    x = 295,255,506.81/19,773.54
  6. Step 6: Final answer
    x = 14,931.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.