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Finding the Fourth Proportional to 9,347.46, 12,892.20 and 5,990.58

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Solution

The fourth proportional to 9,347.46, 12,892.20 and 5,990.58 is: 8,262.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,347.46 : 12,892.20 = 5,990.58 : x
  2. Step 2: Convert to fraction form
    9,347.46/12,892.20 = 5,990.58/x
  3. Step 3: Cross multiply
    9,347.46x = 12,892.20 × 5,990.58
  4. Step 4: Simplify right side
    9,347.46x = 77,231,755.48
  5. Step 5: Solve for x
    x = 77,231,755.48/9,347.46
  6. Step 6: Final answer
    x = 8,262.33

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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.