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Finding the Fourth Proportional to 19,224, 26,527.79 and 11,157.89

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Solution

The fourth proportional to 19,224, 26,527.79 and 11,157.89 is: 15,397.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,224 : 26,527.79 = 11,157.89 : x
  2. Step 2: Convert to fraction form
    19,224/26,527.79 = 11,157.89/x
  3. Step 3: Cross multiply
    19,224x = 26,527.79 × 11,157.89
  4. Step 4: Simplify right side
    19,224x = 295,993,974.33
  5. Step 5: Solve for x
    x = 295,993,974.33/19,224
  6. Step 6: Final answer
    x = 15,397.11

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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.