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Finding the Fourth Proportional to 14,703.99, 20,273.60 and 12,808.59

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Solution

The fourth proportional to 14,703.99, 20,273.60 and 12,808.59 is: 17,660.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,703.99 : 20,273.60 = 12,808.59 : x
  2. Step 2: Convert to fraction form
    14,703.99/20,273.60 = 12,808.59/x
  3. Step 3: Cross multiply
    14,703.99x = 20,273.60 × 12,808.59
  4. Step 4: Simplify right side
    14,703.99x = 259,676,166.18
  5. Step 5: Solve for x
    x = 259,676,166.18/14,703.99
  6. Step 6: Final answer
    x = 17,660.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.