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Finding the Fourth Proportional to 29,364.98, 40,523.81 and 15,936.23

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Solution

The fourth proportional to 29,364.98, 40,523.81 and 15,936.23 is: 21,992.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,364.98 : 40,523.81 = 15,936.23 : x
  2. Step 2: Convert to fraction form
    29,364.98/40,523.81 = 15,936.23/x
  3. Step 3: Cross multiply
    29,364.98x = 40,523.81 × 15,936.23
  4. Step 4: Simplify right side
    29,364.98x = 645,796,743.69
  5. Step 5: Solve for x
    x = 645,796,743.69/29,364.98
  6. Step 6: Final answer
    x = 21,992.07

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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.