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Finding the Fourth Proportional to 34,785.54, 48,003.84 and 18,869.64

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Solution

The fourth proportional to 34,785.54, 48,003.84 and 18,869.64 is: 26,039.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,785.54 : 48,003.84 = 18,869.64 : x
  2. Step 2: Convert to fraction form
    34,785.54/48,003.84 = 18,869.64/x
  3. Step 3: Cross multiply
    34,785.54x = 48,003.84 × 18,869.64
  4. Step 4: Simplify right side
    34,785.54x = 905,815,179.42
  5. Step 5: Solve for x
    x = 905,815,179.42/34,785.54
  6. Step 6: Final answer
    x = 26,039.99

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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.