Home / 50,674.45-69,928-28,012.09

Finding the Fourth Proportional to 50,674.45, 69,928 and 28,012.09

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Solution

The fourth proportional to 50,674.45, 69,928 and 28,012.09 is: 38,655.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,674.45 : 69,928 = 28,012.09 : x
  2. Step 2: Convert to fraction form
    50,674.45/69,928 = 28,012.09/x
  3. Step 3: Cross multiply
    50,674.45x = 69,928 × 28,012.09
  4. Step 4: Simplify right side
    50,674.45x = 1,958,829,429.52
  5. Step 5: Solve for x
    x = 1,958,829,429.52/50,674.45
  6. Step 6: Final answer
    x = 38,655.17

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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.