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Finding the Fourth Proportional to 18,424.89, 25,427.03 and 10,468.46

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Solution

The fourth proportional to 18,424.89, 25,427.03 and 10,468.46 is: 14,446.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,424.89 : 25,427.03 = 10,468.46 : x
  2. Step 2: Convert to fraction form
    18,424.89/25,427.03 = 10,468.46/x
  3. Step 3: Cross multiply
    18,424.89x = 25,427.03 × 10,468.46
  4. Step 4: Simplify right side
    18,424.89x = 266,181,846.47
  5. Step 5: Solve for x
    x = 266,181,846.47/18,424.89
  6. Step 6: Final answer
    x = 14,446.86

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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.