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Finding the Fourth Proportional to 8,673.53, 12,999.82 and 4,224.53

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Solution

The fourth proportional to 8,673.53, 12,999.82 and 4,224.53 is: 6,331.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.53 : 12,999.82 = 4,224.53 : x
  2. Step 2: Convert to fraction form
    8,673.53/12,999.82 = 4,224.53/x
  3. Step 3: Cross multiply
    8,673.53x = 12,999.82 × 4,224.53
  4. Step 4: Simplify right side
    8,673.53x = 54,918,118.62
  5. Step 5: Solve for x
    x = 54,918,118.62/8,673.53
  6. Step 6: Final answer
    x = 6,331.69

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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.