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Finding the Fourth Proportional to 8,665.58, 11,956.93 and 4,939.58

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Solution

The fourth proportional to 8,665.58, 11,956.93 and 4,939.58 is: 6,815.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,665.58 : 11,956.93 = 4,939.58 : x
  2. Step 2: Convert to fraction form
    8,665.58/11,956.93 = 4,939.58/x
  3. Step 3: Cross multiply
    8,665.58x = 11,956.93 × 4,939.58
  4. Step 4: Simplify right side
    8,665.58x = 59,062,212.29
  5. Step 5: Solve for x
    x = 59,062,212.29/8,665.58
  6. Step 6: Final answer
    x = 6,815.73

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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.