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Finding the Fourth Proportional to 73,800.12, 110,700.22 and 31,653

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Solution

The fourth proportional to 73,800.12, 110,700.22 and 31,653 is: 47,479.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,800.12 : 110,700.22 = 31,653 : x
  2. Step 2: Convert to fraction form
    73,800.12/110,700.22 = 31,653/x
  3. Step 3: Cross multiply
    73,800.12x = 110,700.22 × 31,653
  4. Step 4: Simplify right side
    73,800.12x = 3,503,994,063.66
  5. Step 5: Solve for x
    x = 3,503,994,063.66/73,800.12
  6. Step 6: Final answer
    x = 47,479.52

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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.