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Finding the Fourth Proportional to 27,076.89, 40,615.89 and 8,356.93

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Solution

The fourth proportional to 27,076.89, 40,615.89 and 8,356.93 is: 12,535.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,076.89 : 40,615.89 = 8,356.93 : x
  2. Step 2: Convert to fraction form
    27,076.89/40,615.89 = 8,356.93/x
  3. Step 3: Cross multiply
    27,076.89x = 40,615.89 × 8,356.93
  4. Step 4: Simplify right side
    27,076.89x = 339,424,107.83
  5. Step 5: Solve for x
    x = 339,424,107.83/27,076.89
  6. Step 6: Final answer
    x = 12,535.57

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1.5x scale

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.