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Finding the Fourth Proportional to 29,216.88, 40,324.34 and 28,244.88

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Solution

The fourth proportional to 29,216.88, 40,324.34 and 28,244.88 is: 38,982.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,216.88 : 40,324.34 = 28,244.88 : x
  2. Step 2: Convert to fraction form
    29,216.88/40,324.34 = 28,244.88/x
  3. Step 3: Cross multiply
    29,216.88x = 40,324.34 × 28,244.88
  4. Step 4: Simplify right side
    29,216.88x = 1,138,956,144.38
  5. Step 5: Solve for x
    x = 1,138,956,144.38/29,216.88
  6. Step 6: Final answer
    x = 38,982.81

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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.