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Finding the Fourth Proportional to 38,451.99, 57,573.76 and 19,945.11

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Solution

The fourth proportional to 38,451.99, 57,573.76 and 19,945.11 is: 29,863.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,451.99 : 57,573.76 = 19,945.11 : x
  2. Step 2: Convert to fraction form
    38,451.99/57,573.76 = 19,945.11/x
  3. Step 3: Cross multiply
    38,451.99x = 57,573.76 × 19,945.11
  4. Step 4: Simplify right side
    38,451.99x = 1,148,314,876.59
  5. Step 5: Solve for x
    x = 1,148,314,876.59/38,451.99
  6. Step 6: Final answer
    x = 29,863.60

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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.