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Finding the Fourth Proportional to 38,324.47, 57,486.99 and 13,364.47

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Solution

The fourth proportional to 38,324.47, 57,486.99 and 13,364.47 is: 20,046.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,324.47 : 57,486.99 = 13,364.47 : x
  2. Step 2: Convert to fraction form
    38,324.47/57,486.99 = 13,364.47/x
  3. Step 3: Cross multiply
    38,324.47x = 57,486.99 × 13,364.47
  4. Step 4: Simplify right side
    38,324.47x = 768,283,153.25
  5. Step 5: Solve for x
    x = 768,283,153.25/38,324.47
  6. Step 6: Final answer
    x = 20,046.80

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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.