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Finding the Fourth Proportional to 18,108, 24,990.48 and 10,657.44

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Solution

The fourth proportional to 18,108, 24,990.48 and 10,657.44 is: 14,708.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,108 : 24,990.48 = 10,657.44 : x
  2. Step 2: Convert to fraction form
    18,108/24,990.48 = 10,657.44/x
  3. Step 3: Cross multiply
    18,108x = 24,990.48 × 10,657.44
  4. Step 4: Simplify right side
    18,108x = 266,334,541.17
  5. Step 5: Solve for x
    x = 266,334,541.17/18,108
  6. Step 6: Final answer
    x = 14,708.11

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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.