Home / 12,342.72-17,033.28-7,626.56

Finding the Fourth Proportional to 12,342.72, 17,033.28 and 7,626.56

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Solution

The fourth proportional to 12,342.72, 17,033.28 and 7,626.56 is: 10,524.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,342.72 : 17,033.28 = 7,626.56 : x
  2. Step 2: Convert to fraction form
    12,342.72/17,033.28 = 7,626.56/x
  3. Step 3: Cross multiply
    12,342.72x = 17,033.28 × 7,626.56
  4. Step 4: Simplify right side
    12,342.72x = 129,905,331.92
  5. Step 5: Solve for x
    x = 129,905,331.92/12,342.72
  6. Step 6: Final answer
    x = 10,524.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.