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Finding the Fourth Proportional to 14,001.64, 20,940.48 and 12,452.56

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Solution

The fourth proportional to 14,001.64, 20,940.48 and 12,452.56 is: 18,623.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,001.64 : 20,940.48 = 12,452.56 : x
  2. Step 2: Convert to fraction form
    14,001.64/20,940.48 = 12,452.56/x
  3. Step 3: Cross multiply
    14,001.64x = 20,940.48 × 12,452.56
  4. Step 4: Simplify right side
    14,001.64x = 260,762,583.63
  5. Step 5: Solve for x
    x = 260,762,583.63/14,001.64
  6. Step 6: Final answer
    x = 18,623.72

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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.