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Finding the Fourth Proportional to 22,170.89, 30,595.80 and 14,213.10

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Solution

The fourth proportional to 22,170.89, 30,595.80 and 14,213.10 is: 19,614.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,170.89 : 30,595.80 = 14,213.10 : x
  2. Step 2: Convert to fraction form
    22,170.89/30,595.80 = 14,213.10/x
  3. Step 3: Cross multiply
    22,170.89x = 30,595.80 × 14,213.10
  4. Step 4: Simplify right side
    22,170.89x = 434,861,333.01
  5. Step 5: Solve for x
    x = 434,861,333.01/22,170.89
  6. Step 6: Final answer
    x = 19,614.07

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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.