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Finding the Fourth Proportional to 8,785.73, 12,119.73 and 5,953.30

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Solution

The fourth proportional to 8,785.73, 12,119.73 and 5,953.30 is: 8,212.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.73 : 12,119.73 = 5,953.30 : x
  2. Step 2: Convert to fraction form
    8,785.73/12,119.73 = 5,953.30/x
  3. Step 3: Cross multiply
    8,785.73x = 12,119.73 × 5,953.30
  4. Step 4: Simplify right side
    8,785.73x = 72,152,335.98
  5. Step 5: Solve for x
    x = 72,152,335.98/8,785.73
  6. Step 6: Final answer
    x = 8,212.44

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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.