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Finding the Fourth Proportional to 7,893.86, 11,839.58 and 4,963.22

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Solution

The fourth proportional to 7,893.86, 11,839.58 and 4,963.22 is: 7,444.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,893.86 : 11,839.58 = 4,963.22 : x
  2. Step 2: Convert to fraction form
    7,893.86/11,839.58 = 4,963.22/x
  3. Step 3: Cross multiply
    7,893.86x = 11,839.58 × 4,963.22
  4. Step 4: Simplify right side
    7,893.86x = 58,762,440.25
  5. Step 5: Solve for x
    x = 58,762,440.25/7,893.86
  6. Step 6: Final answer
    x = 7,444.07

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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.