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Finding the Fourth Proportional to 38,286.98, 57,210.82 and 29,230.98

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Solution

The fourth proportional to 38,286.98, 57,210.82 and 29,230.98 is: 43,678.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,286.98 : 57,210.82 = 29,230.98 : x
  2. Step 2: Convert to fraction form
    38,286.98/57,210.82 = 29,230.98/x
  3. Step 3: Cross multiply
    38,286.98x = 57,210.82 × 29,230.98
  4. Step 4: Simplify right side
    38,286.98x = 1,672,328,335.20
  5. Step 5: Solve for x
    x = 1,672,328,335.20/38,286.98
  6. Step 6: Final answer
    x = 43,678.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.