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Finding the Fourth Proportional to 45,881.80, 68,736.30 and 23,619.40

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Solution

The fourth proportional to 45,881.80, 68,736.30 and 23,619.40 is: 35,384.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,881.80 : 68,736.30 = 23,619.40 : x
  2. Step 2: Convert to fraction form
    45,881.80/68,736.30 = 23,619.40/x
  3. Step 3: Cross multiply
    45,881.80x = 68,736.30 × 23,619.40
  4. Step 4: Simplify right side
    45,881.80x = 1,623,510,164.22
  5. Step 5: Solve for x
    x = 1,623,510,164.22/45,881.80
  6. Step 6: Final answer
    x = 35,384.62

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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.