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Finding the Fourth Proportional to 18,507.22, 25,533.70 and 10,543.77

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Solution

The fourth proportional to 18,507.22, 25,533.70 and 10,543.77 is: 14,546.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,507.22 : 25,533.70 = 10,543.77 : x
  2. Step 2: Convert to fraction form
    18,507.22/25,533.70 = 10,543.77/x
  3. Step 3: Cross multiply
    18,507.22x = 25,533.70 × 10,543.77
  4. Step 4: Simplify right side
    18,507.22x = 269,221,433.69
  5. Step 5: Solve for x
    x = 269,221,433.69/18,507.22
  6. Step 6: Final answer
    x = 14,546.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.