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Finding the Fourth Proportional to 14,894.73, 20,554.87 and 8,180.50

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Solution

The fourth proportional to 14,894.73, 20,554.87 and 8,180.50 is: 11,289.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,894.73 : 20,554.87 = 8,180.50 : x
  2. Step 2: Convert to fraction form
    14,894.73/20,554.87 = 8,180.50/x
  3. Step 3: Cross multiply
    14,894.73x = 20,554.87 × 8,180.50
  4. Step 4: Simplify right side
    14,894.73x = 168,149,114.04
  5. Step 5: Solve for x
    x = 168,149,114.04/14,894.73
  6. Step 6: Final answer
    x = 11,289.17

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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.