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Finding the Fourth Proportional to 18,857.25, 26,020.11 and 10,897.94

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Solution

The fourth proportional to 18,857.25, 26,020.11 and 10,897.94 is: 15,037.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857.25 : 26,020.11 = 10,897.94 : x
  2. Step 2: Convert to fraction form
    18,857.25/26,020.11 = 10,897.94/x
  3. Step 3: Cross multiply
    18,857.25x = 26,020.11 × 10,897.94
  4. Step 4: Simplify right side
    18,857.25x = 283,565,467.47
  5. Step 5: Solve for x
    x = 283,565,467.47/18,857.25
  6. Step 6: Final answer
    x = 15,037.48

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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.