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Finding the Fourth Proportional to 15,166.93, 20,929.86 and 8,793.64

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Solution

The fourth proportional to 15,166.93, 20,929.86 and 8,793.64 is: 12,134.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,166.93 : 20,929.86 = 8,793.64 : x
  2. Step 2: Convert to fraction form
    15,166.93/20,929.86 = 8,793.64/x
  3. Step 3: Cross multiply
    15,166.93x = 20,929.86 × 8,793.64
  4. Step 4: Simplify right side
    15,166.93x = 184,049,654.09
  5. Step 5: Solve for x
    x = 184,049,654.09/15,166.93
  6. Step 6: Final answer
    x = 12,134.93

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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.