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Finding the Fourth Proportional to 18,747.46, 25,871.47 and 10,363.96

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Solution

The fourth proportional to 18,747.46, 25,871.47 and 10,363.96 is: 14,302.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,747.46 : 25,871.47 = 10,363.96 : x
  2. Step 2: Convert to fraction form
    18,747.46/25,871.47 = 10,363.96/x
  3. Step 3: Cross multiply
    18,747.46x = 25,871.47 × 10,363.96
  4. Step 4: Simplify right side
    18,747.46x = 268,130,880.22
  5. Step 5: Solve for x
    x = 268,130,880.22/18,747.46
  6. Step 6: Final answer
    x = 14,302.25

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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.