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Finding the Fourth Proportional to 27,290.50, 40,948.71 and 8,822.50

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Solution

The fourth proportional to 27,290.50, 40,948.71 and 8,822.50 is: 13,237.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,290.50 : 40,948.71 = 8,822.50 : x
  2. Step 2: Convert to fraction form
    27,290.50/40,948.71 = 8,822.50/x
  3. Step 3: Cross multiply
    27,290.50x = 40,948.71 × 8,822.50
  4. Step 4: Simplify right side
    27,290.50x = 361,269,993.98
  5. Step 5: Solve for x
    x = 361,269,993.98/27,290.50
  6. Step 6: Final answer
    x = 13,237.94

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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.