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Finding the Fourth Proportional to 22,367.70, 30,866.14 and 13,757.16

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Solution

The fourth proportional to 22,367.70, 30,866.14 and 13,757.16 is: 18,984.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,367.70 : 30,866.14 = 13,757.16 : x
  2. Step 2: Convert to fraction form
    22,367.70/30,866.14 = 13,757.16/x
  3. Step 3: Cross multiply
    22,367.70x = 30,866.14 × 13,757.16
  4. Step 4: Simplify right side
    22,367.70x = 424,630,426.56
  5. Step 5: Solve for x
    x = 424,630,426.56/22,367.70
  6. Step 6: Final answer
    x = 18,984.09

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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.