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Finding the Fourth Proportional to 18,916.44, 26,092.86 and 13,602.84

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Solution

The fourth proportional to 18,916.44, 26,092.86 and 13,602.84 is: 18,763.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,916.44 : 26,092.86 = 13,602.84 : x
  2. Step 2: Convert to fraction form
    18,916.44/26,092.86 = 13,602.84/x
  3. Step 3: Cross multiply
    18,916.44x = 26,092.86 × 13,602.84
  4. Step 4: Simplify right side
    18,916.44x = 354,936,999.72
  5. Step 5: Solve for x
    x = 354,936,999.72/18,916.44
  6. Step 6: Final answer
    x = 18,763.41

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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.