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Finding the Fourth Proportional to 25,900.97, 38,856.31 and 8,366.09

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Solution

The fourth proportional to 25,900.97, 38,856.31 and 8,366.09 is: 12,550.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,900.97 : 38,856.31 = 8,366.09 : x
  2. Step 2: Convert to fraction form
    25,900.97/38,856.31 = 8,366.09/x
  3. Step 3: Cross multiply
    25,900.97x = 38,856.31 × 8,366.09
  4. Step 4: Simplify right side
    25,900.97x = 325,075,171.33
  5. Step 5: Solve for x
    x = 325,075,171.33/25,900.97
  6. Step 6: Final answer
    x = 12,550.70

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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.