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Finding the Fourth Proportional to 26,904.45, 40,353.95 and 7,185.00

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Solution

The fourth proportional to 26,904.45, 40,353.95 and 7,185.00 is: 10,776.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,904.45 : 40,353.95 = 7,185.00 : x
  2. Step 2: Convert to fraction form
    26,904.45/40,353.95 = 7,185.00/x
  3. Step 3: Cross multiply
    26,904.45x = 40,353.95 × 7,185.00
  4. Step 4: Simplify right side
    26,904.45x = 289,943,259.62
  5. Step 5: Solve for x
    x = 289,943,259.62/26,904.45
  6. Step 6: Final answer
    x = 10,776.78

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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.