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Finding the Fourth Proportional to 25,305.86, 37,954.88 and 8,662.06

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Solution

The fourth proportional to 25,305.86, 37,954.88 and 8,662.06 is: 12,991.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,305.86 : 37,954.88 = 8,662.06 : x
  2. Step 2: Convert to fraction form
    25,305.86/37,954.88 = 8,662.06/x
  3. Step 3: Cross multiply
    25,305.86x = 37,954.88 × 8,662.06
  4. Step 4: Simplify right side
    25,305.86x = 328,767,447.85
  5. Step 5: Solve for x
    x = 328,767,447.85/25,305.86
  6. Step 6: Final answer
    x = 12,991.75

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1.5x scale

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.