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Finding the Fourth Proportional to 14,199.59, 21,299.42 and 14,179.10

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Solution

The fourth proportional to 14,199.59, 21,299.42 and 14,179.10 is: 21,268.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,199.59 : 21,299.42 = 14,179.10 : x
  2. Step 2: Convert to fraction form
    14,199.59/21,299.42 = 14,179.10/x
  3. Step 3: Cross multiply
    14,199.59x = 21,299.42 × 14,179.10
  4. Step 4: Simplify right side
    14,199.59x = 302,006,428.73
  5. Step 5: Solve for x
    x = 302,006,428.73/14,199.59
  6. Step 6: Final answer
    x = 21,268.67

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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.