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Finding the Fourth Proportional to 15,141.25, 22,712.08 and 4,753

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Solution

The fourth proportional to 15,141.25, 22,712.08 and 4,753 is: 7,129.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,141.25 : 22,712.08 = 4,753 : x
  2. Step 2: Convert to fraction form
    15,141.25/22,712.08 = 4,753/x
  3. Step 3: Cross multiply
    15,141.25x = 22,712.08 × 4,753
  4. Step 4: Simplify right side
    15,141.25x = 107,950,516.24
  5. Step 5: Solve for x
    x = 107,950,516.24/15,141.25
  6. Step 6: Final answer
    x = 7,129.56

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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.