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Finding the Fourth Proportional to 14,687.82, 20,269.08 and 7,973.63

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Solution

The fourth proportional to 14,687.82, 20,269.08 and 7,973.63 is: 11,003.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,687.82 : 20,269.08 = 7,973.63 : x
  2. Step 2: Convert to fraction form
    14,687.82/20,269.08 = 7,973.63/x
  3. Step 3: Cross multiply
    14,687.82x = 20,269.08 × 7,973.63
  4. Step 4: Simplify right side
    14,687.82x = 161,618,043.02
  5. Step 5: Solve for x
    x = 161,618,043.02/14,687.82
  6. Step 6: Final answer
    x = 11,003.54

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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.