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Finding the Fourth Proportional to 26,796.78, 36,981.84 and 14,863.98

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Solution

The fourth proportional to 26,796.78, 36,981.84 and 14,863.98 is: 20,513.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,796.78 : 36,981.84 = 14,863.98 : x
  2. Step 2: Convert to fraction form
    26,796.78/36,981.84 = 14,863.98/x
  3. Step 3: Cross multiply
    26,796.78x = 36,981.84 × 14,863.98
  4. Step 4: Simplify right side
    26,796.78x = 549,697,330.12
  5. Step 5: Solve for x
    x = 549,697,330.12/26,796.78
  6. Step 6: Final answer
    x = 20,513.56

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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.