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Finding the Fourth Proportional to 14,636.70, 21,911.92 and 9,072.14

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Solution

The fourth proportional to 14,636.70, 21,911.92 and 9,072.14 is: 13,581.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,636.70 : 21,911.92 = 9,072.14 : x
  2. Step 2: Convert to fraction form
    14,636.70/21,911.92 = 9,072.14/x
  3. Step 3: Cross multiply
    14,636.70x = 21,911.92 × 9,072.14
  4. Step 4: Simplify right side
    14,636.70x = 198,787,873.67
  5. Step 5: Solve for x
    x = 198,787,873.67/14,636.70
  6. Step 6: Final answer
    x = 13,581.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.