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Finding the Fourth Proportional to 26,753.84, 40,136.16 and 18,437.84

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Solution

The fourth proportional to 26,753.84, 40,136.16 and 18,437.84 is: 27,660.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,753.84 : 40,136.16 = 18,437.84 : x
  2. Step 2: Convert to fraction form
    26,753.84/40,136.16 = 18,437.84/x
  3. Step 3: Cross multiply
    26,753.84x = 40,136.16 × 18,437.84
  4. Step 4: Simplify right side
    26,753.84x = 740,024,096.29
  5. Step 5: Solve for x
    x = 740,024,096.29/26,753.84
  6. Step 6: Final answer
    x = 27,660.48

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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.