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Finding the Fourth Proportional to 25,305.98, 37,955.07 and 8,662.19

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Solution

The fourth proportional to 25,305.98, 37,955.07 and 8,662.19 is: 12,991.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,305.98 : 37,955.07 = 8,662.19 : x
  2. Step 2: Convert to fraction form
    25,305.98/37,955.07 = 8,662.19/x
  3. Step 3: Cross multiply
    25,305.98x = 37,955.07 × 8,662.19
  4. Step 4: Simplify right side
    25,305.98x = 328,774,027.80
  5. Step 5: Solve for x
    x = 328,774,027.80/25,305.98
  6. Step 6: Final answer
    x = 12,991.95

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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.