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Finding the Fourth Proportional to 8,858.74, 13,273.92 and 6,776.22

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Solution

The fourth proportional to 8,858.74, 13,273.92 and 6,776.22 is: 10,153.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.74 : 13,273.92 = 6,776.22 : x
  2. Step 2: Convert to fraction form
    8,858.74/13,273.92 = 6,776.22/x
  3. Step 3: Cross multiply
    8,858.74x = 13,273.92 × 6,776.22
  4. Step 4: Simplify right side
    8,858.74x = 89,947,002.18
  5. Step 5: Solve for x
    x = 89,947,002.18/8,858.74
  6. Step 6: Final answer
    x = 10,153.48

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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.