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Finding the Fourth Proportional to 18,877.36, 26,012.36 and 14,602.46

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Solution

The fourth proportional to 18,877.36, 26,012.36 and 14,602.46 is: 20,121.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,877.36 : 26,012.36 = 14,602.46 : x
  2. Step 2: Convert to fraction form
    18,877.36/26,012.36 = 14,602.46/x
  3. Step 3: Cross multiply
    18,877.36x = 26,012.36 × 14,602.46
  4. Step 4: Simplify right side
    18,877.36x = 379,844,446.41
  5. Step 5: Solve for x
    x = 379,844,446.41/18,877.36
  6. Step 6: Final answer
    x = 20,121.69

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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.