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Finding the Fourth Proportional to 18,897.61, 26,083.43 and 10,944.67

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Solution

The fourth proportional to 18,897.61, 26,083.43 and 10,944.67 is: 15,106.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,897.61 : 26,083.43 = 10,944.67 : x
  2. Step 2: Convert to fraction form
    18,897.61/26,083.43 = 10,944.67/x
  3. Step 3: Cross multiply
    18,897.61x = 26,083.43 × 10,944.67
  4. Step 4: Simplify right side
    18,897.61x = 285,474,533.82
  5. Step 5: Solve for x
    x = 285,474,533.82/18,897.61
  6. Step 6: Final answer
    x = 15,106.38

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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.