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Finding the Fourth Proportional to 45,817.20, 68,716.20 and 22,460.40

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Solution

The fourth proportional to 45,817.20, 68,716.20 and 22,460.40 is: 33,685.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,817.20 : 68,716.20 = 22,460.40 : x
  2. Step 2: Convert to fraction form
    45,817.20/68,716.20 = 22,460.40/x
  3. Step 3: Cross multiply
    45,817.20x = 68,716.20 × 22,460.40
  4. Step 4: Simplify right side
    45,817.20x = 1,543,393,338.48
  5. Step 5: Solve for x
    x = 1,543,393,338.48/45,817.20
  6. Step 6: Final answer
    x = 33,685.89

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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.