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Finding the Fourth Proportional to 14,980.50, 20,673.09 and 8,696.34

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Solution

The fourth proportional to 14,980.50, 20,673.09 and 8,696.34 is: 12,000.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,980.50 : 20,673.09 = 8,696.34 : x
  2. Step 2: Convert to fraction form
    14,980.50/20,673.09 = 8,696.34/x
  3. Step 3: Cross multiply
    14,980.50x = 20,673.09 × 8,696.34
  4. Step 4: Simplify right side
    14,980.50x = 179,780,219.49
  5. Step 5: Solve for x
    x = 179,780,219.49/14,980.50
  6. Step 6: Final answer
    x = 12,000.95

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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.