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Finding the Fourth Proportional to 18,922.16, 26,112.59 and 10,424.27

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Solution

The fourth proportional to 18,922.16, 26,112.59 and 10,424.27 is: 14,385.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,922.16 : 26,112.59 = 10,424.27 : x
  2. Step 2: Convert to fraction form
    18,922.16/26,112.59 = 10,424.27/x
  3. Step 3: Cross multiply
    18,922.16x = 26,112.59 × 10,424.27
  4. Step 4: Simplify right side
    18,922.16x = 272,204,505.88
  5. Step 5: Solve for x
    x = 272,204,505.88/18,922.16
  6. Step 6: Final answer
    x = 14,385.49

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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.