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Finding the Fourth Proportional to 34,358.40, 47,414.40 and 19,453.44

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Solution

The fourth proportional to 34,358.40, 47,414.40 and 19,453.44 is: 26,845.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,358.40 : 47,414.40 = 19,453.44 : x
  2. Step 2: Convert to fraction form
    34,358.40/47,414.40 = 19,453.44/x
  3. Step 3: Cross multiply
    34,358.40x = 47,414.40 × 19,453.44
  4. Step 4: Simplify right side
    34,358.40x = 922,373,185.54
  5. Step 5: Solve for x
    x = 922,373,185.54/34,358.40
  6. Step 6: Final answer
    x = 26,845.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.