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Finding the Fourth Proportional to 38,231.60, 57,347.60 and 11,934.14

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Solution

The fourth proportional to 38,231.60, 57,347.60 and 11,934.14 is: 17,901.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,231.60 : 57,347.60 = 11,934.14 : x
  2. Step 2: Convert to fraction form
    38,231.60/57,347.60 = 11,934.14/x
  3. Step 3: Cross multiply
    38,231.60x = 57,347.60 × 11,934.14
  4. Step 4: Simplify right side
    38,231.60x = 684,393,940.66
  5. Step 5: Solve for x
    x = 684,393,940.66/38,231.60
  6. Step 6: Final answer
    x = 17,901.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.