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Finding the Fourth Proportional to 14,903.73, 20,561.90 and 9,243.09

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Solution

The fourth proportional to 14,903.73, 20,561.90 and 9,243.09 is: 12,752.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,903.73 : 20,561.90 = 9,243.09 : x
  2. Step 2: Convert to fraction form
    14,903.73/20,561.90 = 9,243.09/x
  3. Step 3: Cross multiply
    14,903.73x = 20,561.90 × 9,243.09
  4. Step 4: Simplify right side
    14,903.73x = 190,055,446.06
  5. Step 5: Solve for x
    x = 190,055,446.06/14,903.73
  6. Step 6: Final answer
    x = 12,752.21

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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.