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Finding the Fourth Proportional to 23,327.40, 34,991.10 and 20,411.40

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Solution

The fourth proportional to 23,327.40, 34,991.10 and 20,411.40 is: 30,617.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,327.40 : 34,991.10 = 20,411.40 : x
  2. Step 2: Convert to fraction form
    23,327.40/34,991.10 = 20,411.40/x
  3. Step 3: Cross multiply
    23,327.40x = 34,991.10 × 20,411.40
  4. Step 4: Simplify right side
    23,327.40x = 714,217,338.54
  5. Step 5: Solve for x
    x = 714,217,338.54/23,327.40
  6. Step 6: Final answer
    x = 30,617.10

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Similar ratio
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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.