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Finding the Fourth Proportional to 30,659.88, 45,994.26 and 10,936.68

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Solution

The fourth proportional to 30,659.88, 45,994.26 and 10,936.68 is: 16,406.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,659.88 : 45,994.26 = 10,936.68 : x
  2. Step 2: Convert to fraction form
    30,659.88/45,994.26 = 10,936.68/x
  3. Step 3: Cross multiply
    30,659.88x = 45,994.26 × 10,936.68
  4. Step 4: Simplify right side
    30,659.88x = 503,024,503.46
  5. Step 5: Solve for x
    x = 503,024,503.46/30,659.88
  6. Step 6: Final answer
    x = 16,406.60

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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.