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Finding the Fourth Proportional to 14,636.99, 21,912.42 and 9,072.47

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Solution

The fourth proportional to 14,636.99, 21,912.42 and 9,072.47 is: 13,582.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,636.99 : 21,912.42 = 9,072.47 : x
  2. Step 2: Convert to fraction form
    14,636.99/21,912.42 = 9,072.47/x
  3. Step 3: Cross multiply
    14,636.99x = 21,912.42 × 9,072.47
  4. Step 4: Simplify right side
    14,636.99x = 198,799,773.08
  5. Step 5: Solve for x
    x = 198,799,773.08/14,636.99
  6. Step 6: Final answer
    x = 13,582.01

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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.