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Finding the Fourth Proportional to 19,404.32, 26,777.04 and 11,020.64

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Solution

The fourth proportional to 19,404.32, 26,777.04 and 11,020.64 is: 15,207.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,404.32 : 26,777.04 = 11,020.64 : x
  2. Step 2: Convert to fraction form
    19,404.32/26,777.04 = 11,020.64/x
  3. Step 3: Cross multiply
    19,404.32x = 26,777.04 × 11,020.64
  4. Step 4: Simplify right side
    19,404.32x = 295,100,118.11
  5. Step 5: Solve for x
    x = 295,100,118.11/19,404.32
  6. Step 6: Final answer
    x = 15,207.96

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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.