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Finding the Fourth Proportional to 18,508.13, 25,541.21 and 10,124.63

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Solution

The fourth proportional to 18,508.13, 25,541.21 and 10,124.63 is: 13,971.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,508.13 : 25,541.21 = 10,124.63 : x
  2. Step 2: Convert to fraction form
    18,508.13/25,541.21 = 10,124.63/x
  3. Step 3: Cross multiply
    18,508.13x = 25,541.21 × 10,124.63
  4. Step 4: Simplify right side
    18,508.13x = 258,595,198.61
  5. Step 5: Solve for x
    x = 258,595,198.61/18,508.13
  6. Step 6: Final answer
    x = 13,971.98

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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.