Home / 25,655.70-38,481.12-8,124.06

Finding the Fourth Proportional to 25,655.70, 38,481.12 and 8,124.06

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Solution

The fourth proportional to 25,655.70, 38,481.12 and 8,124.06 is: 12,185.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,655.70 : 38,481.12 = 8,124.06 : x
  2. Step 2: Convert to fraction form
    25,655.70/38,481.12 = 8,124.06/x
  3. Step 3: Cross multiply
    25,655.70x = 38,481.12 × 8,124.06
  4. Step 4: Simplify right side
    25,655.70x = 312,622,927.75
  5. Step 5: Solve for x
    x = 312,622,927.75/25,655.70
  6. Step 6: Final answer
    x = 12,185.32

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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.