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Finding the Fourth Proportional to 29,364.93, 40,523.91 and 15,936.30

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Solution

The fourth proportional to 29,364.93, 40,523.91 and 15,936.30 is: 21,992.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,364.93 : 40,523.91 = 15,936.30 : x
  2. Step 2: Convert to fraction form
    29,364.93/40,523.91 = 15,936.30/x
  3. Step 3: Cross multiply
    29,364.93x = 40,523.91 × 15,936.30
  4. Step 4: Simplify right side
    29,364.93x = 645,801,127.17
  5. Step 5: Solve for x
    x = 645,801,127.17/29,364.93
  6. Step 6: Final answer
    x = 21,992.26

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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.