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Finding the Fourth Proportional to 27,259.94, 40,895.68 and 8,790.50

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Solution

The fourth proportional to 27,259.94, 40,895.68 and 8,790.50 is: 13,187.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,259.94 : 40,895.68 = 8,790.50 : x
  2. Step 2: Convert to fraction form
    27,259.94/40,895.68 = 8,790.50/x
  3. Step 3: Cross multiply
    27,259.94x = 40,895.68 × 8,790.50
  4. Step 4: Simplify right side
    27,259.94x = 359,493,475.04
  5. Step 5: Solve for x
    x = 359,493,475.04/27,259.94
  6. Step 6: Final answer
    x = 13,187.61

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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.