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Finding the Fourth Proportional to 29,365.28, 40,523.40 and 16,789.28

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Solution

The fourth proportional to 29,365.28, 40,523.40 and 16,789.28 is: 23,168.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,365.28 : 40,523.40 = 16,789.28 : x
  2. Step 2: Convert to fraction form
    29,365.28/40,523.40 = 16,789.28/x
  3. Step 3: Cross multiply
    29,365.28x = 40,523.40 × 16,789.28
  4. Step 4: Simplify right side
    29,365.28x = 680,358,709.15
  5. Step 5: Solve for x
    x = 680,358,709.15/29,365.28
  6. Step 6: Final answer
    x = 23,168.81

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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.