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Finding the Fourth Proportional to 14,675.94, 20,252.88 and 7,961.58

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Solution

The fourth proportional to 14,675.94, 20,252.88 and 7,961.58 is: 10,987.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,675.94 : 20,252.88 = 7,961.58 : x
  2. Step 2: Convert to fraction form
    14,675.94/20,252.88 = 7,961.58/x
  3. Step 3: Cross multiply
    14,675.94x = 20,252.88 × 7,961.58
  4. Step 4: Simplify right side
    14,675.94x = 161,244,924.35
  5. Step 5: Solve for x
    x = 161,244,924.35/14,675.94
  6. Step 6: Final answer
    x = 10,987.03

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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.