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Finding the Fourth Proportional to 14,465.50, 19,963.62 and 8,179.09

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Solution

The fourth proportional to 14,465.50, 19,963.62 and 8,179.09 is: 11,287.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,465.50 : 19,963.62 = 8,179.09 : x
  2. Step 2: Convert to fraction form
    14,465.50/19,963.62 = 8,179.09/x
  3. Step 3: Cross multiply
    14,465.50x = 19,963.62 × 8,179.09
  4. Step 4: Simplify right side
    14,465.50x = 163,284,244.71
  5. Step 5: Solve for x
    x = 163,284,244.71/14,465.50
  6. Step 6: Final answer
    x = 11,287.84

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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.