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Finding the Fourth Proportional to 31,008.60, 46,512.90 and 10,234.20

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Solution

The fourth proportional to 31,008.60, 46,512.90 and 10,234.20 is: 15,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,008.60 : 46,512.90 = 10,234.20 : x
  2. Step 2: Convert to fraction form
    31,008.60/46,512.90 = 10,234.20/x
  3. Step 3: Cross multiply
    31,008.60x = 46,512.90 × 10,234.20
  4. Step 4: Simplify right side
    31,008.60x = 476,022,321.18
  5. Step 5: Solve for x
    x = 476,022,321.18/31,008.60
  6. Step 6: Final answer
    x = 15,351.30

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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.