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Finding the Fourth Proportional to 14,190.84, 21,251.88 and 12,098.88

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Solution

The fourth proportional to 14,190.84, 21,251.88 and 12,098.88 is: 18,119.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,190.84 : 21,251.88 = 12,098.88 : x
  2. Step 2: Convert to fraction form
    14,190.84/21,251.88 = 12,098.88/x
  3. Step 3: Cross multiply
    14,190.84x = 21,251.88 × 12,098.88
  4. Step 4: Simplify right side
    14,190.84x = 257,123,945.89
  5. Step 5: Solve for x
    x = 257,123,945.89/14,190.84
  6. Step 6: Final answer
    x = 18,119.01

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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.