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Finding the Fourth Proportional to 48,664.53, 72,996.80 and 11,728.53

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Solution

The fourth proportional to 48,664.53, 72,996.80 and 11,728.53 is: 17,592.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,664.53 : 72,996.80 = 11,728.53 : x
  2. Step 2: Convert to fraction form
    48,664.53/72,996.80 = 11,728.53/x
  3. Step 3: Cross multiply
    48,664.53x = 72,996.80 × 11,728.53
  4. Step 4: Simplify right side
    48,664.53x = 856,145,100.06
  5. Step 5: Solve for x
    x = 856,145,100.06/48,664.53
  6. Step 6: Final answer
    x = 17,592.80

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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.