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Finding the Fourth Proportional to 14,973.82, 20,662.22 and 8,684.98

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Solution

The fourth proportional to 14,973.82, 20,662.22 and 8,684.98 is: 11,984.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,973.82 : 20,662.22 = 8,684.98 : x
  2. Step 2: Convert to fraction form
    14,973.82/20,662.22 = 8,684.98/x
  3. Step 3: Cross multiply
    14,973.82x = 20,662.22 × 8,684.98
  4. Step 4: Simplify right side
    14,973.82x = 179,450,967.46
  5. Step 5: Solve for x
    x = 179,450,967.46/14,973.82
  6. Step 6: Final answer
    x = 11,984.31

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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.