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Finding the Fourth Proportional to 14,687.73, 20,268.51 and 7,973.22

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Solution

The fourth proportional to 14,687.73, 20,268.51 and 7,973.22 is: 11,002.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,687.73 : 20,268.51 = 7,973.22 : x
  2. Step 2: Convert to fraction form
    14,687.73/20,268.51 = 7,973.22/x
  3. Step 3: Cross multiply
    14,687.73x = 20,268.51 × 7,973.22
  4. Step 4: Simplify right side
    14,687.73x = 161,605,289.30
  5. Step 5: Solve for x
    x = 161,605,289.30/14,687.73
  6. Step 6: Final answer
    x = 11,002.74

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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.