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Finding the Fourth Proportional to 14,132.78, 19,502.46 and 7,844.78

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Solution

The fourth proportional to 14,132.78, 19,502.46 and 7,844.78 is: 10,825.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,132.78 : 19,502.46 = 7,844.78 : x
  2. Step 2: Convert to fraction form
    14,132.78/19,502.46 = 7,844.78/x
  3. Step 3: Cross multiply
    14,132.78x = 19,502.46 × 7,844.78
  4. Step 4: Simplify right side
    14,132.78x = 152,992,508.16
  5. Step 5: Solve for x
    x = 152,992,508.16/14,132.78
  6. Step 6: Final answer
    x = 10,825.37

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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.