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Finding the Fourth Proportional to 18,750.68, 25,875.78 and 10,367.12

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Solution

The fourth proportional to 18,750.68, 25,875.78 and 10,367.12 is: 14,306.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750.68 : 25,875.78 = 10,367.12 : x
  2. Step 2: Convert to fraction form
    18,750.68/25,875.78 = 10,367.12/x
  3. Step 3: Cross multiply
    18,750.68x = 25,875.78 × 10,367.12
  4. Step 4: Simplify right side
    18,750.68x = 268,257,316.35
  5. Step 5: Solve for x
    x = 268,257,316.35/18,750.68
  6. Step 6: Final answer
    x = 14,306.54

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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.