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Finding the Fourth Proportional to 18,855.25, 26,022.54 and 10,897.54

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Solution

The fourth proportional to 18,855.25, 26,022.54 and 10,897.54 is: 15,039.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,855.25 : 26,022.54 = 10,897.54 : x
  2. Step 2: Convert to fraction form
    18,855.25/26,022.54 = 10,897.54/x
  3. Step 3: Cross multiply
    18,855.25x = 26,022.54 × 10,897.54
  4. Step 4: Simplify right side
    18,855.25x = 283,581,670.55
  5. Step 5: Solve for x
    x = 283,581,670.55/18,855.25
  6. Step 6: Final answer
    x = 15,039.93

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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.