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Finding the Fourth Proportional to 10,859.61, 16,291.44 and 4,936.92

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Solution

The fourth proportional to 10,859.61, 16,291.44 and 4,936.92 is: 7,406.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,859.61 : 16,291.44 = 4,936.92 : x
  2. Step 2: Convert to fraction form
    10,859.61/16,291.44 = 4,936.92/x
  3. Step 3: Cross multiply
    10,859.61x = 16,291.44 × 4,936.92
  4. Step 4: Simplify right side
    10,859.61x = 80,429,535.96
  5. Step 5: Solve for x
    x = 80,429,535.96/10,859.61
  6. Step 6: Final answer
    x = 7,406.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.