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Finding the Fourth Proportional to 34,710.20, 47,900 and 18,794.64

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Solution

The fourth proportional to 34,710.20, 47,900 and 18,794.64 is: 25,936.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,710.20 : 47,900 = 18,794.64 : x
  2. Step 2: Convert to fraction form
    34,710.20/47,900 = 18,794.64/x
  3. Step 3: Cross multiply
    34,710.20x = 47,900 × 18,794.64
  4. Step 4: Simplify right side
    34,710.20x = 900,263,256
  5. Step 5: Solve for x
    x = 900,263,256/34,710.20
  6. Step 6: Final answer
    x = 25,936.56

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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.