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Finding the Fourth Proportional to 12,165.49, 16,763.47 and 8,973.73

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Solution

The fourth proportional to 12,165.49, 16,763.47 and 8,973.73 is: 12,365.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165.49 : 16,763.47 = 8,973.73 : x
  2. Step 2: Convert to fraction form
    12,165.49/16,763.47 = 8,973.73/x
  3. Step 3: Cross multiply
    12,165.49x = 16,763.47 × 8,973.73
  4. Step 4: Simplify right side
    12,165.49x = 150,430,852.16
  5. Step 5: Solve for x
    x = 150,430,852.16/12,165.49
  6. Step 6: Final answer
    x = 12,365.37

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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.