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Finding the Fourth Proportional to 18,285.44, 25,234.80 and 10,328

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Solution

The fourth proportional to 18,285.44, 25,234.80 and 10,328 is: 14,253.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285.44 : 25,234.80 = 10,328 : x
  2. Step 2: Convert to fraction form
    18,285.44/25,234.80 = 10,328/x
  3. Step 3: Cross multiply
    18,285.44x = 25,234.80 × 10,328
  4. Step 4: Simplify right side
    18,285.44x = 260,625,014.40
  5. Step 5: Solve for x
    x = 260,625,014.40/18,285.44
  6. Step 6: Final answer
    x = 14,253.14

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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.