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Finding the Fourth Proportional to 38,530.80, 54,046.80 and 38,530.80

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Solution

The fourth proportional to 38,530.80, 54,046.80 and 38,530.80 is: 54,046.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,530.80 : 54,046.80 = 38,530.80 : x
  2. Step 2: Convert to fraction form
    38,530.80/54,046.80 = 38,530.80/x
  3. Step 3: Cross multiply
    38,530.80x = 54,046.80 × 38,530.80
  4. Step 4: Simplify right side
    38,530.80x = 2,082,466,441.44
  5. Step 5: Solve for x
    x = 2,082,466,441.44/38,530.80
  6. Step 6: Final answer
    x = 54,046.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.