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Finding the Fourth Proportional to 16,405.40, 24,608.10 and 15,433.40

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Solution

The fourth proportional to 16,405.40, 24,608.10 and 15,433.40 is: 23,150.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,405.40 : 24,608.10 = 15,433.40 : x
  2. Step 2: Convert to fraction form
    16,405.40/24,608.10 = 15,433.40/x
  3. Step 3: Cross multiply
    16,405.40x = 24,608.10 × 15,433.40
  4. Step 4: Simplify right side
    16,405.40x = 379,786,650.54
  5. Step 5: Solve for x
    x = 379,786,650.54/16,405.40
  6. Step 6: Final answer
    x = 23,150.10

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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.