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Finding the Fourth Proportional to 14,757.49, 20,365.49 and 8,043.08

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Solution

The fourth proportional to 14,757.49, 20,365.49 and 8,043.08 is: 11,099.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,757.49 : 20,365.49 = 8,043.08 : x
  2. Step 2: Convert to fraction form
    14,757.49/20,365.49 = 8,043.08/x
  3. Step 3: Cross multiply
    14,757.49x = 20,365.49 × 8,043.08
  4. Step 4: Simplify right side
    14,757.49x = 163,801,225.09
  5. Step 5: Solve for x
    x = 163,801,225.09/14,757.49
  6. Step 6: Final answer
    x = 11,099.54

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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.