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Finding the Fourth Proportional to 18,763.03, 25,892.63 and 10,379.53

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Solution

The fourth proportional to 18,763.03, 25,892.63 and 10,379.53 is: 14,323.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,763.03 : 25,892.63 = 10,379.53 : x
  2. Step 2: Convert to fraction form
    18,763.03/25,892.63 = 10,379.53/x
  3. Step 3: Cross multiply
    18,763.03x = 25,892.63 × 10,379.53
  4. Step 4: Simplify right side
    18,763.03x = 268,753,277.97
  5. Step 5: Solve for x
    x = 268,753,277.97/18,763.03
  6. Step 6: Final answer
    x = 14,323.55

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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.