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Finding the Fourth Proportional to 9,343.76, 12,892.03 and 6,362.62

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Solution

The fourth proportional to 9,343.76, 12,892.03 and 6,362.62 is: 8,778.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,343.76 : 12,892.03 = 6,362.62 : x
  2. Step 2: Convert to fraction form
    9,343.76/12,892.03 = 6,362.62/x
  3. Step 3: Cross multiply
    9,343.76x = 12,892.03 × 6,362.62
  4. Step 4: Simplify right side
    9,343.76x = 82,027,039.78
  5. Step 5: Solve for x
    x = 82,027,039.78/9,343.76
  6. Step 6: Final answer
    x = 8,778.81

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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.