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Finding the Fourth Proportional to 18,508.02, 25,541.10 and 10,124.52

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Solution

The fourth proportional to 18,508.02, 25,541.10 and 10,124.52 is: 13,971.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,508.02 : 25,541.10 = 10,124.52 : x
  2. Step 2: Convert to fraction form
    18,508.02/25,541.10 = 10,124.52/x
  3. Step 3: Cross multiply
    18,508.02x = 25,541.10 × 10,124.52
  4. Step 4: Simplify right side
    18,508.02x = 258,591,377.77
  5. Step 5: Solve for x
    x = 258,591,377.77/18,508.02
  6. Step 6: Final answer
    x = 13,971.86

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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.