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Finding the Fourth Proportional to 16,205.70, 24,308.55 and 15,112.20

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Solution

The fourth proportional to 16,205.70, 24,308.55 and 15,112.20 is: 22,668.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,205.70 : 24,308.55 = 15,112.20 : x
  2. Step 2: Convert to fraction form
    16,205.70/24,308.55 = 15,112.20/x
  3. Step 3: Cross multiply
    16,205.70x = 24,308.55 × 15,112.20
  4. Step 4: Simplify right side
    16,205.70x = 367,355,669.31
  5. Step 5: Solve for x
    x = 367,355,669.31/16,205.70
  6. Step 6: Final answer
    x = 22,668.30

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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.