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Finding the Fourth Proportional to 18,508.08, 25,541.12 and 10,124.58

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Solution

The fourth proportional to 18,508.08, 25,541.12 and 10,124.58 is: 13,971.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,508.08 : 25,541.12 = 10,124.58 : x
  2. Step 2: Convert to fraction form
    18,508.08/25,541.12 = 10,124.58/x
  3. Step 3: Cross multiply
    18,508.08x = 25,541.12 × 10,124.58
  4. Step 4: Simplify right side
    18,508.08x = 258,593,112.73
  5. Step 5: Solve for x
    x = 258,593,112.73/18,508.08
  6. Step 6: Final answer
    x = 13,971.90

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1.5x scale

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.