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Finding the Fourth Proportional to 9,393.89, 12,965.70 and 5,856.41

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Solution

The fourth proportional to 9,393.89, 12,965.70 and 5,856.41 is: 8,083.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,393.89 : 12,965.70 = 5,856.41 : x
  2. Step 2: Convert to fraction form
    9,393.89/12,965.70 = 5,856.41/x
  3. Step 3: Cross multiply
    9,393.89x = 12,965.70 × 5,856.41
  4. Step 4: Simplify right side
    9,393.89x = 75,932,455.14
  5. Step 5: Solve for x
    x = 75,932,455.14/9,393.89
  6. Step 6: Final answer
    x = 8,083.17

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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.