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Finding the Fourth Proportional to 18,606.86, 25,677.92 and 10,108.98

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Solution

The fourth proportional to 18,606.86, 25,677.92 and 10,108.98 is: 13,950.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,606.86 : 25,677.92 = 10,108.98 : x
  2. Step 2: Convert to fraction form
    18,606.86/25,677.92 = 10,108.98/x
  3. Step 3: Cross multiply
    18,606.86x = 25,677.92 × 10,108.98
  4. Step 4: Simplify right side
    18,606.86x = 259,577,579.72
  5. Step 5: Solve for x
    x = 259,577,579.72/18,606.86
  6. Step 6: Final answer
    x = 13,950.64

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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.