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Finding the Fourth Proportional to 8,772.63, 13,160.78 and 2,850.99

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Solution

The fourth proportional to 8,772.63, 13,160.78 and 2,850.99 is: 4,277.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.63 : 13,160.78 = 2,850.99 : x
  2. Step 2: Convert to fraction form
    8,772.63/13,160.78 = 2,850.99/x
  3. Step 3: Cross multiply
    8,772.63x = 13,160.78 × 2,850.99
  4. Step 4: Simplify right side
    8,772.63x = 37,521,237.92
  5. Step 5: Solve for x
    x = 37,521,237.92/8,772.63
  6. Step 6: Final answer
    x = 4,277.08

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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.