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Finding the Fourth Proportional to 45,857.48, 68,786.22 and 36,681.80

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Solution

The fourth proportional to 45,857.48, 68,786.22 and 36,681.80 is: 55,022.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,857.48 : 68,786.22 = 36,681.80 : x
  2. Step 2: Convert to fraction form
    45,857.48/68,786.22 = 36,681.80/x
  3. Step 3: Cross multiply
    45,857.48x = 68,786.22 × 36,681.80
  4. Step 4: Simplify right side
    45,857.48x = 2,523,202,364.80
  5. Step 5: Solve for x
    x = 2,523,202,364.80/45,857.48
  6. Step 6: Final answer
    x = 55,022.70

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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.