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Finding the Fourth Proportional to 16,221.42, 24,332.09 and 3,909.42

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Solution

The fourth proportional to 16,221.42, 24,332.09 and 3,909.42 is: 5,864.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,221.42 : 24,332.09 = 3,909.42 : x
  2. Step 2: Convert to fraction form
    16,221.42/24,332.09 = 3,909.42/x
  3. Step 3: Cross multiply
    16,221.42x = 24,332.09 × 3,909.42
  4. Step 4: Simplify right side
    16,221.42x = 95,124,339.74
  5. Step 5: Solve for x
    x = 95,124,339.74/16,221.42
  6. Step 6: Final answer
    x = 5,864.12

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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.