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Finding the Fourth Proportional to 31,079.96, 46,612.08 and 8,893.44

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Solution

The fourth proportional to 31,079.96, 46,612.08 and 8,893.44 is: 13,337.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,079.96 : 46,612.08 = 8,893.44 : x
  2. Step 2: Convert to fraction form
    31,079.96/46,612.08 = 8,893.44/x
  3. Step 3: Cross multiply
    31,079.96x = 46,612.08 × 8,893.44
  4. Step 4: Simplify right side
    31,079.96x = 414,541,736.76
  5. Step 5: Solve for x
    x = 414,541,736.76/31,079.96
  6. Step 6: Final answer
    x = 13,337.91

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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.