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Finding the Fourth Proportional to 68,995.37, 103,493.73 and 37,813.61

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Solution

The fourth proportional to 68,995.37, 103,493.73 and 37,813.61 is: 56,720.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,995.37 : 103,493.73 = 37,813.61 : x
  2. Step 2: Convert to fraction form
    68,995.37/103,493.73 = 37,813.61/x
  3. Step 3: Cross multiply
    68,995.37x = 103,493.73 × 37,813.61
  4. Step 4: Simplify right side
    68,995.37x = 3,913,471,543.67
  5. Step 5: Solve for x
    x = 3,913,471,543.67/68,995.37
  6. Step 6: Final answer
    x = 56,720.78

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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.