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Finding the Fourth Proportional to 8,793.89, 12,135.47 and 4,760.63

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Solution

The fourth proportional to 8,793.89, 12,135.47 and 4,760.63 is: 6,569.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,793.89 : 12,135.47 = 4,760.63 : x
  2. Step 2: Convert to fraction form
    8,793.89/12,135.47 = 4,760.63/x
  3. Step 3: Cross multiply
    8,793.89x = 12,135.47 × 4,760.63
  4. Step 4: Simplify right side
    8,793.89x = 57,772,450.28
  5. Step 5: Solve for x
    x = 57,772,450.28/8,793.89
  6. Step 6: Final answer
    x = 6,569.61

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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.