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Finding the Fourth Proportional to 14,487.54, 19,992.87 and 8,201.13

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Solution

The fourth proportional to 14,487.54, 19,992.87 and 8,201.13 is: 11,317.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,487.54 : 19,992.87 = 8,201.13 : x
  2. Step 2: Convert to fraction form
    14,487.54/19,992.87 = 8,201.13/x
  3. Step 3: Cross multiply
    14,487.54x = 19,992.87 × 8,201.13
  4. Step 4: Simplify right side
    14,487.54x = 163,964,125.94
  5. Step 5: Solve for x
    x = 163,964,125.94/14,487.54
  6. Step 6: Final answer
    x = 11,317.60

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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.