Home / 25,406.39-38,109.24-7,876.22

Finding the Fourth Proportional to 25,406.39, 38,109.24 and 7,876.22

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Solution

The fourth proportional to 25,406.39, 38,109.24 and 7,876.22 is: 11,814.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,406.39 : 38,109.24 = 7,876.22 : x
  2. Step 2: Convert to fraction form
    25,406.39/38,109.24 = 7,876.22/x
  3. Step 3: Cross multiply
    25,406.39x = 38,109.24 × 7,876.22
  4. Step 4: Simplify right side
    25,406.39x = 300,156,804.24
  5. Step 5: Solve for x
    x = 300,156,804.24/25,406.39
  6. Step 6: Final answer
    x = 11,814.22

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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.