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Finding the Fourth Proportional to 14,049.52, 19,388.40 and 7,762

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Solution

The fourth proportional to 14,049.52, 19,388.40 and 7,762 is: 10,711.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,049.52 : 19,388.40 = 7,762 : x
  2. Step 2: Convert to fraction form
    14,049.52/19,388.40 = 7,762/x
  3. Step 3: Cross multiply
    14,049.52x = 19,388.40 × 7,762
  4. Step 4: Simplify right side
    14,049.52x = 150,492,760.80
  5. Step 5: Solve for x
    x = 150,492,760.80/14,049.52
  6. Step 6: Final answer
    x = 10,711.59

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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.