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Finding the Fourth Proportional to 14,614.58, 20,166.90 and 8,242.74

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Solution

The fourth proportional to 14,614.58, 20,166.90 and 8,242.74 is: 11,374.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,614.58 : 20,166.90 = 8,242.74 : x
  2. Step 2: Convert to fraction form
    14,614.58/20,166.90 = 8,242.74/x
  3. Step 3: Cross multiply
    14,614.58x = 20,166.90 × 8,242.74
  4. Step 4: Simplify right side
    14,614.58x = 166,230,513.31
  5. Step 5: Solve for x
    x = 166,230,513.31/14,614.58
  6. Step 6: Final answer
    x = 11,374.29

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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.