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Finding the Fourth Proportional to 29,364.41, 40,523.19 and 15,935.78

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Solution

The fourth proportional to 29,364.41, 40,523.19 and 15,935.78 is: 21,991.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,364.41 : 40,523.19 = 15,935.78 : x
  2. Step 2: Convert to fraction form
    29,364.41/40,523.19 = 15,935.78/x
  3. Step 3: Cross multiply
    29,364.41x = 40,523.19 × 15,935.78
  4. Step 4: Simplify right side
    29,364.41x = 645,768,742.05
  5. Step 5: Solve for x
    x = 645,768,742.05/29,364.41
  6. Step 6: Final answer
    x = 21,991.54

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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.