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Finding the Fourth Proportional to 69,997.76, 105,073.18 and 36,708.88

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Solution

The fourth proportional to 69,997.76, 105,073.18 and 36,708.88 is: 55,103.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,997.76 : 105,073.18 = 36,708.88 : x
  2. Step 2: Convert to fraction form
    69,997.76/105,073.18 = 36,708.88/x
  3. Step 3: Cross multiply
    69,997.76x = 105,073.18 × 36,708.88
  4. Step 4: Simplify right side
    69,997.76x = 3,857,118,755.84
  5. Step 5: Solve for x
    x = 3,857,118,755.84/69,997.76
  6. Step 6: Final answer
    x = 55,103.46

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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.