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Finding the Fourth Proportional to 34,687.58, 47,869.02 and 18,772.03

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Solution

The fourth proportional to 34,687.58, 47,869.02 and 18,772.03 is: 25,905.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,687.58 : 47,869.02 = 18,772.03 : x
  2. Step 2: Convert to fraction form
    34,687.58/47,869.02 = 18,772.03/x
  3. Step 3: Cross multiply
    34,687.58x = 47,869.02 × 18,772.03
  4. Step 4: Simplify right side
    34,687.58x = 898,598,705.32
  5. Step 5: Solve for x
    x = 898,598,705.32/34,687.58
  6. Step 6: Final answer
    x = 25,905.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.