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Finding the Fourth Proportional to 14,469.84, 19,971.96 and 8,185.92

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Solution

The fourth proportional to 14,469.84, 19,971.96 and 8,185.92 is: 11,298.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,469.84 : 19,971.96 = 8,185.92 : x
  2. Step 2: Convert to fraction form
    14,469.84/19,971.96 = 8,185.92/x
  3. Step 3: Cross multiply
    14,469.84x = 19,971.96 × 8,185.92
  4. Step 4: Simplify right side
    14,469.84x = 163,488,866.80
  5. Step 5: Solve for x
    x = 163,488,866.80/14,469.84
  6. Step 6: Final answer
    x = 11,298.60

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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.