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Finding the Fourth Proportional to 18,746, 25,869.96 and 11,294.48

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Solution

The fourth proportional to 18,746, 25,869.96 and 11,294.48 is: 15,586.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,746 : 25,869.96 = 11,294.48 : x
  2. Step 2: Convert to fraction form
    18,746/25,869.96 = 11,294.48/x
  3. Step 3: Cross multiply
    18,746x = 25,869.96 × 11,294.48
  4. Step 4: Simplify right side
    18,746x = 292,187,745.82
  5. Step 5: Solve for x
    x = 292,187,745.82/18,746
  6. Step 6: Final answer
    x = 15,586.67

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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.