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Finding the Fourth Proportional to 10,855.68, 14,994.90 and 8,028.84

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Solution

The fourth proportional to 10,855.68, 14,994.90 and 8,028.84 is: 11,090.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,855.68 : 14,994.90 = 8,028.84 : x
  2. Step 2: Convert to fraction form
    10,855.68/14,994.90 = 8,028.84/x
  3. Step 3: Cross multiply
    10,855.68x = 14,994.90 × 8,028.84
  4. Step 4: Simplify right side
    10,855.68x = 120,391,652.92
  5. Step 5: Solve for x
    x = 120,391,652.92/10,855.68
  6. Step 6: Final answer
    x = 11,090.20

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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.