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Finding the Fourth Proportional to 14,894.08, 20,554.06 and 8,179.98

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Solution

The fourth proportional to 14,894.08, 20,554.06 and 8,179.98 is: 11,288.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,894.08 : 20,554.06 = 8,179.98 : x
  2. Step 2: Convert to fraction form
    14,894.08/20,554.06 = 8,179.98/x
  3. Step 3: Cross multiply
    14,894.08x = 20,554.06 × 8,179.98
  4. Step 4: Simplify right side
    14,894.08x = 168,131,799.72
  5. Step 5: Solve for x
    x = 168,131,799.72/14,894.08
  6. Step 6: Final answer
    x = 11,288.50

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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.