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Finding the Fourth Proportional to 45,806.14, 68,693.02 and 21,787.62

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Solution

The fourth proportional to 45,806.14, 68,693.02 and 21,787.62 is: 32,673.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,806.14 : 68,693.02 = 21,787.62 : x
  2. Step 2: Convert to fraction form
    45,806.14/68,693.02 = 21,787.62/x
  3. Step 3: Cross multiply
    45,806.14x = 68,693.02 × 21,787.62
  4. Step 4: Simplify right side
    45,806.14x = 1,496,657,416.41
  5. Step 5: Solve for x
    x = 1,496,657,416.41/45,806.14
  6. Step 6: Final answer
    x = 32,673.73

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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.