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Finding the Fourth Proportional to 15,954.66, 23,931.30 and 5,424.27

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Solution

The fourth proportional to 15,954.66, 23,931.30 and 5,424.27 is: 8,136.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,954.66 : 23,931.30 = 5,424.27 : x
  2. Step 2: Convert to fraction form
    15,954.66/23,931.30 = 5,424.27/x
  3. Step 3: Cross multiply
    15,954.66x = 23,931.30 × 5,424.27
  4. Step 4: Simplify right side
    15,954.66x = 129,809,832.65
  5. Step 5: Solve for x
    x = 129,809,832.65/15,954.66
  6. Step 6: Final answer
    x = 8,136.17

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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.