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Finding the Fourth Proportional to 26,562.39, 39,859.98 and 10,980

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Solution

The fourth proportional to 26,562.39, 39,859.98 and 10,980 is: 16,476.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,562.39 : 39,859.98 = 10,980 : x
  2. Step 2: Convert to fraction form
    26,562.39/39,859.98 = 10,980/x
  3. Step 3: Cross multiply
    26,562.39x = 39,859.98 × 10,980
  4. Step 4: Simplify right side
    26,562.39x = 437,662,580.40
  5. Step 5: Solve for x
    x = 437,662,580.40/26,562.39
  6. Step 6: Final answer
    x = 16,476.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.