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Finding the Fourth Proportional to 30,396.32, 41,944.90 and 19,065.32

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Solution

The fourth proportional to 30,396.32, 41,944.90 and 19,065.32 is: 26,308.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,396.32 : 41,944.90 = 19,065.32 : x
  2. Step 2: Convert to fraction form
    30,396.32/41,944.90 = 19,065.32/x
  3. Step 3: Cross multiply
    30,396.32x = 41,944.90 × 19,065.32
  4. Step 4: Simplify right side
    30,396.32x = 799,692,635.82
  5. Step 5: Solve for x
    x = 799,692,635.82/30,396.32
  6. Step 6: Final answer
    x = 26,308.87

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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.