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Finding the Fourth Proportional to 18,679.48, 25,775.94 and 10,295.92

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Solution

The fourth proportional to 18,679.48, 25,775.94 and 10,295.92 is: 14,207.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,679.48 : 25,775.94 = 10,295.92 : x
  2. Step 2: Convert to fraction form
    18,679.48/25,775.94 = 10,295.92/x
  3. Step 3: Cross multiply
    18,679.48x = 25,775.94 × 10,295.92
  4. Step 4: Simplify right side
    18,679.48x = 265,387,016.16
  5. Step 5: Solve for x
    x = 265,387,016.16/18,679.48
  6. Step 6: Final answer
    x = 14,207.41

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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.