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Finding the Fourth Proportional to 26,339.50, 36,348.51 and 15,161.50

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Solution

The fourth proportional to 26,339.50, 36,348.51 and 15,161.50 is: 20,922.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,339.50 : 36,348.51 = 15,161.50 : x
  2. Step 2: Convert to fraction form
    26,339.50/36,348.51 = 15,161.50/x
  3. Step 3: Cross multiply
    26,339.50x = 36,348.51 × 15,161.50
  4. Step 4: Simplify right side
    26,339.50x = 551,097,934.37
  5. Step 5: Solve for x
    x = 551,097,934.37/26,339.50
  6. Step 6: Final answer
    x = 20,922.87

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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.